EP3383001B1 - Mobile terminal - Google Patents
Mobile terminal Download PDFInfo
- Publication number
- EP3383001B1 EP3383001B1 EP15909365.7A EP15909365A EP3383001B1 EP 3383001 B1 EP3383001 B1 EP 3383001B1 EP 15909365 A EP15909365 A EP 15909365A EP 3383001 B1 EP3383001 B1 EP 3383001B1
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- EP
- European Patent Office
- Prior art keywords
- touch
- mobile terminal
- touch region
- region
- windows
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Definitions
- the present disclosure relates to a mobile terminal capable of recognizing a fingerprint through the glass thereof and maintaining uniform brightness.
- terminals such as personal computers, laptop computers and cellular phones diversify, the terminals become multimedia players having multiple functions for capturing pictures or moving images, playing music, moving image files and games and receiving broadcast programs.
- Terminals can be categorized as mobile terminals and stationary terminals.
- the mobile terminals can be further comprised of handheld terminals and vehicle mounted terminals according to whether users can personally carry the terminals.
- Conventional terminals including mobile terminals provide an increasing number of complex and various functions.
- Mobile terminal security is reinforced by introducing fingerprint recognition to mobile terminals. Particularly, a technique of recognizing a user fingerprint is mainly used. While a fingerprint sensor is provided separately from the glass of a mobile terminal in many cases, a mobile terminal having a fingerprint recognition function provided to the glass thereof can be considered for design and space utilization of the mobile terminal.
- US 2013/127784 A1 discloses an illumination system in display for hiding optical contrast features.
- CN 104 035 620 A discloses a fingerprint collecting device of low cost and thin thickness, low-power consumption.
- the thickness of the glass may increase since a fingerprint is composed of ridges and valleys and thus a sensor having a resolution less than a gap between a ridge and a valley needs to be provided to the glass.
- the present disclosure provides a mobile terminal capable of recognizing a fingerprint through the glass thereof and maintaining uniform brightness.
- a mobile terminal may be described below with reference to the accompanying drawings.
- suffixes "module” and “unit” may be given to components of the mobile terminal in consideration of only facilitation of description and do not have meanings or functions discriminated from each other.
- the mobile terminal may include a cellular phone, a smart phone, a laptop computer, a digital broadcasting terminal, personal digital assistants (PDA), a portable multimedia player (PMP), a navigation system and/or so on.
- PDA personal digital assistants
- PMP portable multimedia player
- FIG. 1 is a block diagram of a mobile terminal useful for understanding an embodiment. Other embodiments, configurations and arrangements may also be provided.
- the mobile terminal 100 may include a wireless communication unit 110 (or radio communication unit), an audio/video (A/V) input unit 120, a user input unit 130, a sensing unit 140, an output unit 150, a memory 160, an interface 170, a controller 180, and a power supply 190.
- the components shown in FIG. 1 may be essential parts and/or a number of components included in the mobile terminal 100 may vary. Components of the mobile terminal 100 may now be described.
- the wireless communication unit 110 may include at least one module that enables radio communication between the mobile terminal 100 and a radio communication system or between the mobile terminal 100 and a network in which the mobile terminal 100 is located.
- the wireless communication unit 110 may include a broadcasting receiving module 111, a mobile communication module 112, a wireless Internet module 113, a short range communication module 114 (or local area communication module), and a location information module 115 (or position information module).
- the broadcasting receiving module 111 may receive broadcasting signals and/or broadcasting related information from an external broadcasting management server through a broadcasting channel.
- the broadcasting channel may include a satellite channel and a terrestrial channel
- the broadcasting management server may be a server that generates and transmits broadcasting signals and/or broadcasting related information or a server that receives previously created broadcasting signals and/or broadcasting related information and transmits the broadcasting signals and/or broadcasting related information to a terminal.
- the broadcasting signals may include not only TV broadcasting signals, radio broadcasting signals, and data broadcasting signals but also signals in the form of a combination of a TV broadcasting signal and a radio broadcasting signal.
- the broadcasting related information may be information on a broadcasting channel, a broadcasting program or a broadcasting service provider, and may be provided even through a mobile communication network. In the latter case, the broadcasting related information may be received by the mobile communication module 112.
- the broadcasting related information may exist in various forms.
- the broadcasting related information may exist in the form of an electronic program guide (EPG) of a digital multimedia broadcasting (DMB) system or in the form of an electronic service guide (ESG) of a digital video broadcast-handheld (DVB-H) system.
- EPG electronic program guide
- ESG electronic service guide
- DMB digital multimedia broadcasting
- DVB-H digital video broadcast-handheld
- the broadcasting receiving module 111 may receive broadcasting signals using various broadcasting systems. More particularly, the broadcasting receiving module 111 may receive digital broadcasting signals using digital broadcasting systems such as a digital multimedia broadcasting-terrestrial (DMB-T) system, a digital multimedia broadcasting-satellite (DMB-S) system, a media forward link only (MediaFLO) system, a DVB-H and integrated services digital broadcast-terrestrial (ISDB-T) systems.
- DMB-T digital multimedia broadcasting-terrestrial
- DMB-S digital multimedia broadcasting-satellite
- MediaFLO media forward link only
- ISDB-T integrated services digital broadcast-terrestrial
- the broadcasting receiving module 111 may receive signals from broadcasting systems providing broadcasting signals other than the above-described digital broadcasting systems.
- the broadcasting signals and/or broadcasting related information received through the broadcasting receiving module 111 may be stored in the memory 160.
- the mobile communication module 112 may transmit/receive a radio signal to/from at least one of a base station, an external terminal and a server on a mobile communication network.
- the radio signal may include a voice call signal, a video telephony call signal or data in various forms according to transmission and reception of text/multimedia messages.
- the wireless Internet module 113 may correspond to a module for wireless Internet access and may be included in the mobile terminal 100 or may be externally attached to the mobile terminal 100.
- Wireless LAN WLAN or Wi-Fi
- Wibro wireless broadband
- Wimax world interoperability for microwave access
- HSDPA high speed downlink packet access
- the short range communication module 114 may correspond to a module for short range communication. Further, Bluetooth®, radio frequency identification (RFID), infrared data association (IrDA), ultra wideband (UWB) and/or ZigBee® may be used as a short range communication technique.
- RFID radio frequency identification
- IrDA infrared data association
- UWB ultra wideband
- ZigBee® ZigBee®
- the location information module 115 may confirm or obtain a location or a position of the mobile terminal 100.
- the location information module 115 may obtain position information by using a global navigation satellite system (GNSS).
- GNSS is a terminology describing a radio navigation satellite system that revolves around the earth and transmits reference signals to predetermined types of radio navigation receivers such that the radio navigation receivers can determine their positions on the earth's surface or near the earth's surface.
- the GNSS may include a global positioning system (GPS) of the United States, Galileo of Europe, a global orbiting navigational satellite system (GLONASS) of Russia, COMPASS of China, and a quasi-zenith satellite system (QZSS) of Japan, for example.
- GPS global positioning system
- Galileo Galileo of Europe
- GLONASS global orbiting navigational satellite system
- QZSS quasi-zenith satellite system
- a global positioning system (GPS) module is a representative example of the location information module 115.
- the GPS module may calculate information on distances between one point or object and at least three satellites and information on a time when distance information is measured and apply trigonometry to the obtained distance information to obtain three-dimensional position information on the point or object according to latitude, longitude and altitude at a predetermined time.
- a method of calculating position and time information using three satellites and correcting the calculated position and time information using another satellite may also be used. Additionally, the GPS module may continuously calculate a current position in real time and calculate velocity information using the location or position information.
- the A/V input unit 120 may input (or receive) an audio signal and/or a video signal.
- the A/V input unit 120 may include a camera 121 and a microphone 122.
- the camera 121 may process image frames of still images or moving images obtained by an image sensor in a video telephony mode or a photographing mode.
- the processed image frames may be displayed on a display 151, which may be a touch screen.
- the image frames processed by the camera 121 may be stored in the memory 160 or may be transmitted to an external device through the wireless communication unit 110.
- the mobile terminal 100 may also include at least two cameras 121.
- the microphone 122 may receive an external audio signal in a call mode, a recording mode and/or a speech recognition mode, and the microphone 122 may process the received audio signal into electric audio data. The audio data may then be converted into a form that can be transmitted to a mobile communication base station through the mobile communication module 112 and output in the call mode.
- the microphone 122 may employ various noise removal algorithms (or noise canceling algorithms) for removing or reducing noise generated when the external audio signal is received.
- the user input unit 130 may receive input data for controlling operation of the mobile terminal 100 from a user.
- the user input unit 130 may include a keypad, a dome switch, a touch pad (constant voltage/capacitance), a jog wheel, a jog switch and/or so on.
- the sensing unit 140 may sense a current state of the mobile terminal 100, such as an open/close state of the mobile terminal 100, a position of the mobile terminal 100, whether a user touches the mobile terminal 100, a direction of the mobile terminal 100, and acceleration/deceleration of the mobile terminal 100, and the sensing unit 140 may generate a sensing signal for controlling operation of the mobile terminal 100.
- the sensing unit 140 may sense whether the slide phone is opened or closed. Further, the sensing unit 140 may sense whether the power supply 190 supplies power and/or whether the interface 170 is connected to an external device.
- the sensing unit 140 may also include a proximity sensor 141. The sensing unit 140 may sense a motion of the mobile terminal 100.
- the output unit 150 may generate visual, auditory and/or tactile output, and the output unit 150 may include the display 151, an audio output module 152, an alarm 153 and a haptic module 154.
- the display 151 may display information processed by the mobile terminal 100.
- the display 151 may display a user interface (UI) and/or a graphic user interface (GUI) related to a telephone call when the mobile terminal 100 is in the call mode.
- the display 151 may also display a captured and/or received image, a UI or a GUI when the mobile terminal 100 is in the video telephony mode or the photographing mode.
- the display 151 may include at least one of a liquid crystal display, a thin film transistor liquid crystal display, an organic light-emitting diode display, a flexible display and/or a three-dimensional display.
- the display 151 may be of a transparent type or a light transmissive type. That is, the display 151 may include a transparent display.
- the transparent display may be a transparent liquid crystal display.
- a rear structure of the display 151 may also be of a light transmissive type. Accordingly, a user may see an object located behind the body (of the mobile terminal 100) through the transparent area of the body of the mobile terminal 100 that is occupied by the display 151.
- the mobile terminal 100 may also include at least two displays 151.
- the mobile terminal 100 may include a plurality of displays 151 that are arranged on a single face at a predetermined distance or integrated displays.
- the plurality of displays 151 may also be arranged on different sides.
- the display 151 and a sensor sensing touch form a layered structure that is referred to as a touch screen
- the display 151 may be used as an input device in addition to an output device.
- the touch sensor may be in the form of a touch film, a touch sheet, and/or a touch pad, for example.
- the touch sensor may convert a variation in pressure applied to a specific portion of the display 151 or a variation in capacitance generated at a specific portion of the display 151 into an electric input signal.
- the touch sensor may sense pressure of touch as well as position and area of the touch.
- a signal corresponding to the touch input may be transmitted to a touch controller.
- the touch controller may then process the signal and transmit data corresponding to the processed signal to the controller 180. Accordingly, the controller 180 may detect a touched portion of the display 151.
- the proximity sensor 141 (of the sensing unit 140) may be located in an internal region of the mobile terminal 100, surrounded by the touch screen, and/or near the touch screen.
- the proximity sensor 141 may sense an object approaching a predetermined sensing face or an object located near the proximity sensor 141 using an electromagnetic force or infrared rays without having mechanical contact.
- the proximity sensor 141 may have a lifetime longer than a contact sensor and may thus have a wide application in the mobile terminal 100.
- the proximity sensor 141 may include a transmission type photo-electric sensor, a direct reflection type photo-electric sensor, a mirror reflection type photo-electric sensor, a high-frequency oscillating proximity sensor, a capacitive proximity sensor, a magnetic proximity sensor, and/or an infrared proximity sensor.
- a capacitive touch screen may be constructed such that proximity of a pointer is detected through a variation in an electric field according to the proximity of the pointer.
- the touch screen (touch sensor) may be classified as a proximity sensor 141.
- an action of the pointer approaching the touch screen without actually touching the touch screen may be referred to as a proximity touch and an action of bringing the pointer into contact with the touch screen may be referred to as a contact touch.
- the proximity touch point of the pointer on the touch screen may correspond to a point of the touch screen at which the pointer is perpendicular to the touch screen.
- the proximity sensor 141 may sense the proximity touch and a proximity touch pattern (e.g., a proximity touch distance, a proximity touch direction, a proximity touch velocity, a proximity touch time, a proximity touch position, a proximity touch moving state, etc.). Information corresponding to the sensed proximity touch action and proximity touch pattern may then be displayed on the touch screen.
- a proximity touch pattern e.g., a proximity touch distance, a proximity touch direction, a proximity touch velocity, a proximity touch time, a proximity touch position, a proximity touch moving state, etc.
- the audio output module 152 may output audio data received from the wireless communication unit 110 or stored in the memory 160 in a call signal receiving mode, a telephone call mode or a recording mode, a speech recognition mode and a broadcasting receiving mode.
- the audio output module 152 may output audio signals related to functions, such as a call signal incoming tone and a message incoming tone, performed in the mobile terminal 100.
- the audio output module 152 may include a receiver, a speaker, a buzzer, and/or the like.
- the audio output module 152 may output sounds through an earphone jack. The user may hear the sounds by connecting an earphone to the earphone jack.
- the alarm 153 may output a signal for indicating generation of an event of the mobile terminal 100. For example, an alarm may be generated when receiving a call signal, receiving a message, inputting a key signal, and/or inputting a touch.
- the alarm 153 may also output signals in forms different from video signals or audio signals, for example, a signal for indicating generation of an event through vibration.
- the video signals and/or the audio signals may also be output through the display 151 or the audio output module 152.
- the haptic module 154 may generate various haptic effects that the user can feel.
- One example of the haptic effects is vibration.
- An intensity and/or pattern of vibration generated by the haptic module 154 may also be controlled. For example, different vibrations may be combined and output or may be sequentially output.
- the haptic module 154 may generate a variety of haptic effects including an effect of stimulus according to an arrangement of pins vertically moving against a contact skin surface, an effect of stimulus according to a jet force or sucking force of air through a jet hole or a sucking hole, an effect of stimulus of rubbing the skin, an effect of stimulus according to contact of an electrode, an effect of stimulus using an electrostatic force, and an effect according to a reproduction of cold and warmth using an element capable of absorbing or radiating heat in addition to vibrations.
- the haptic module 154 may not only transmit haptic effects through direct contact but may also allow the user to feel haptic effects through a kinesthetic sense of the user's fingers or arms.
- the mobile terminal 100 may also include a plurality of haptic modules 154.
- the memory 160 may store a program for operations of the controller 180 and/or temporarily store input/output data such as a phone book, messages, still images, and/or moving images.
- the memory 160 may also store data about vibrations and sounds in various patterns that are output from when a touch input is applied to the touch screen.
- the memory 160 may include at least a flash memory, a hard disk type memory, a multimedia card micro type memory, a card type memory, such as SD or XD memory, a random access memory (RAM), a static RAM (SRAM), a read-only memory (ROM), an electrically erasable programmable ROM (EEPROM), a programmable ROM (PROM) magnetic memory, a magnetic disk and/or an optical disk.
- the mobile terminal 100 may also operate in relation to a web storage that performs a storing function of the memory 160 on the Internet.
- the interface 170 may serve as a path to external devices connected to the mobile terminal 100.
- the interface 170 may receive data from the external devices or power and transmit the data or power to internal components of the mobile terminal 100 or transmit data of the mobile terminal 100 to the external devices.
- the interface 170 may include a wired/wireless headset port, an external charger port, a wired/wireless data port, a memory card port, a port for connecting a device having a user identification module, an audio I/O port, a video I/O port, and/or an earphone port.
- the interface 170 may also interface with a user identification module that is a chip that stores information for authenticating authority to use the mobile terminal 100.
- the user identification module may be a user identity module (UIM), a subscriber identity module (SIM) and/or a universal subscriber identity module (USIM).
- An identification device (including the user identification module) may also be manufactured in the form of a smart card. Accordingly, the identification device may be connected to the mobile terminal 100 through a port of the interface 170.
- the interface 170 may also be a path through which power from an external cradle is provided to the mobile terminal 100 when the mobile terminal 100 is connected to the external cradle or a path through which various command signals input by the user through the cradle are transmitted to the mobile terminal 100.
- the various command signals or power input from the cradle may be used as signals for confirming whether the mobile terminal 100 is correctly set in the cradle.
- the controller 180 may control overall operations of the mobile terminal 100.
- the controller 180 may perform control and processing for voice communication, data communication and/or video telephony.
- the controller 180 may also include a multimedia module 181 for playing multimedia.
- the multimedia module 181 may be included in the controller 180 or may be separated from the controller 180.
- the controller 180 may perform a pattern recognition process capable of recognizing handwriting input or picture-drawing input applied to the touch screen as characters or images.
- the power supply 190 may receive external power and internal power and provide power required for operations of the components of the mobile terminal 100 under control of the controller 180.
- embodiments may be implemented using at least one of application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gate arrays (FPGAs), processors, controllers, micro-controllers, microprocessors, and/or electrical units for executing functions.
- ASICs application specific integrated circuits
- DSPs digital signal processors
- DSPDs digital signal processing devices
- PLDs programmable logic devices
- FPGAs field programmable gate arrays
- processors controllers, micro-controllers, microprocessors, and/or electrical units for executing functions.
- controller 180 may be implemented by the controller 180.
- embodiments such as procedures or functions may be implemented with a separate software module that executes at least one function or operation.
- Software codes may be implemented according to a software application written in an appropriate software language. The software codes may be stored in the memory 160 and executed by the controller 180.
- FIG. 2 is a front perspective view of a mobile terminal (or a handheld terminal) according to an embodiment.
- the mobile terminal 100 may be a bar type terminal body. However, embodiments are not limited to a bar type terminal and may be applied to terminals of various types including slide type, folder type, swing type and/or swivel type terminals having at least two bodies that are relatively movably combined.
- the terminal body may include a case (a casing, a housing, a cover, etc.) that forms an exterior of the mobile terminal 100.
- the case may be divided into a front case 101 and a rear case 102.
- Various electronic components may be arranged in the space formed between the front case 101 and the rear case 102.
- At least one middle case may be additionally provided between the front case 101 and the rear case 102.
- the cases may be formed of plastics through injection molding or made of a metal material such as stainless steel (STS) or titanium (Ti).
- STS stainless steel
- Ti titanium
- the display 151, the audio output unit 152, the camera 121, the user input unit 130/131 and 132, the microphone 122 and the interface 170 may be arranged (or provided) in the terminal body, and more specifically may be arranged (or provided) in the front case 101.
- the display 151 may occupy most of the main face of the front case 101.
- the audio output unit 152 and the camera 121 may be arranged in a region in proximity to one of both ends of the display 151 and the user input unit 131, and the microphone 122 may be located in a region in proximity to another end of the display 151.
- the user input unit 132 and the interface 170 may be arranged (or provided) on sides of the front case 101 and the rear case 102.
- the user input unit 130 may receive commands for controlling operation of the mobile terminal 100, and may include a plurality of operating units 131 and 132.
- the operating units 131 and 132 may be referred to as manipulating portions and may employ any tactile manner in which a user operates the operating units 131 and 132 while having tactile feeling.
- the first and second operating units 131 and 132 may receive various inputs.
- the first operating unit 131 may receive commands such as start, end and scroll and the second operating unit 132 may receive commands such as control of a volume of sound output from the audio output unit 152 or conversion of the display 151 to a touch recognition mode.
- FIG. 3 is a rear perspective view of the mobile terminal (shown in FIG. 2 ) according to an embodiment.
- a camera 121' may be additionally attached to the rear side of the terminal body (i.e., the rear case 102).
- the camera 121' may have a photographing direction opposite to that of the camera 121 (shown in FIG. 2 ) and may have pixels different from those of the camera 121 (shown in FIG. 2 )
- the camera 121 has a low number of pixels such that the camera 121 may capture an image of a face of a user and transmit the image to a receiving part in case of video telephony while the camera 121' has a high number of pixels because the camera 121' captures an image of a general object and does not immediately transmit the image in many cases.
- the cameras 121 and 121' may be attached (or provided) to the terminal body such that the cameras 121 and 121' may rotate or pop up.
- a flash bulb 123 and a mirror 124 may be additionally provided in proximity to the camera 121'.
- the flash bulb 123 may light an object when the camera 121' takes a picture of the object.
- the mirror 124 may be used for the user to look at his/her face in the mirror when the user wants to self-photograph himself/herself using the camera 121'.
- An audio output unit 152' may be additionally provided on the rear side of the terminal body.
- the audio output unit 152' may achieve a stereo function with the audio output unit 152 (shown in FIG. 2 ) and may be used for a speaker phone mode when the terminal is used for a telephone call.
- a broadcasting signal receiving antenna may be additionally attached (or provided) to the side of the terminal body in addition to an antenna for telephone calls.
- the antenna constructing a part of the broadcasting receiving module 111 may be set in the terminal body such that the antenna may be pulled out of the terminal body.
- the power supply 191 for providing power to the mobile terminal 100 may be set in the terminal body.
- the power supply 191 may be included in the terminal body or may be detachably attached to the terminal body.
- a touch pad for sensing touch may be attached to the rear case 102.
- the touch pad may be of a light transmission type, such as the display 151.
- the display 151 outputs visual information through both sides thereof, the visual information may be recognized (or determined) by the touch pad.
- the information output through both sides of the display 151 may be controlled by the touch pad.
- a display may be additionally attached (or provided) to the touch pad such that a touch screen may be arranged (or provided) even in the rear case 102.
- the touch pad may operate in connection with the display 151 of the front case 101.
- the touch pad may be located in parallel with the display 151 behind the display 151.
- the touch panel may be identical to or smaller than the display 151 in size.
- FIG. 3 is a view for explaining a proximity depth of a proximity sensor.
- the proximity sensor located inside or near the touch screen may sense the approach of the pointer, and may output a proximity signal.
- the proximity sensor may be constructed such that the proximity sensor outputs a proximity signal according to a distance between the pointer approaching the touch screen and the touch screen (referred to as "proximity depth").
- the distance in which the proximity signal is output when the pointer approaches the touch screen may be referred to as a detection distance.
- the proximity depth may be determined by using a plurality of proximity sensors having different detection distances and by comparing proximity signals respectively output from the proximity sensors.
- FIG. 4 is a conceptual view of a deformable mobile terminal
- mobile terminal 200 is shown having display unit 251, which is a type of display that is deformable by an external force.
- This deformation which includes display unit 251 and other components of mobile terminal 200, may include any of curving, bending, folding, twisting, rolling, and combinations thereof.
- the deformable display unit 251 may also be referred to as a "flexible display unit.”
- the flexible display unit 251 may include a general flexible display, electronic paper (also known as e-paper), and combinations thereof.
- mobile terminal 200 may be configured to include features that are the same or similar to that of mobile terminal 100 of FIGS. 1-3 .
- the flexible display of mobile terminal 200 is generally formed as a lightweight, non-fragile display, which still exhibits characteristics of a conventional flat panel display, but is instead fabricated on a flexible substrate which can be deformed as noted previously.
- e-paper may be used to refer to a display technology employing the characteristic of a general ink, and is different from the conventional flat panel display in view of using reflected light.
- E-paper is generally understood as changing displayed information using a twist ball or via electrophoresis using a capsule.
- a display region of the flexible display unit 251 When in a state that the flexible display unit 251 is not deformed (for example, in a state with an infinite radius of curvature and referred to as a first state), a display region of the flexible display unit 251 includes a generally flat surface.
- the display region When in a state that the flexible display unit 251 is deformed from the first state by an external force (for example, a state with a finite radius of curvature and referred to as a second state), the display region may become a curved surface or a bent surface.
- information displayed in the second state may be visual information output on the curved surface.
- the visual information may be realized in such a manner that a light emission of each unit pixel (sub-pixel) arranged in a matrix configuration is controlled independently.
- the unit pixel denotes an elementary unit for representing one color.
- the first state of the flexible display unit 251 may be a curved state (for example, a state of being curved from up to down or from right to left), instead of being in flat state.
- the flexible display unit 251 may transition to the second state such that the flexible display unit is deformed into the flat state (or a less curved state) or into a more curved state.
- the flexible display unit 251 may implement a flexible touch screen using a touch sensor in combination with the display.
- the controller 180 can execute certain control corresponding to the touch input.
- the flexible touch screen is configured to sense touch and other input while in both the first and second states.
- One option is to configure the mobile terminal 200 to include a deformation sensor which senses the deforming of the flexible display unit 251.
- the deformation sensor may be included in the sensing unit 140.
- the deformation sensor may be located in the flexible display unit 251 or the case 201 to sense information related to the deforming of the flexible display unit 251.
- Examples of such information related to the deforming of the flexible display unit 251 may be a deformed direction, a deformed degree, a deformed position, a deformed amount of time, an acceleration with which the deformed flexible display unit 251 is restored, and the like.
- Other possibilities include almost any type of information which can be sensed in response to the curving of the flexible display unit or sensed while the flexible display unit 251 is transitioning into, or existing in, the first and second states.
- controller 180 or another component can change information displayed on the flexible display unit 251, or generate a control signal for controlling a function of the mobile terminal 200, based on the information related to the deforming of the flexible display unit 251. Such information is typically sensed by the deformation sensor.
- the mobile terminal 200 is shown having a case 201 for accommodating the flexible display unit 251.
- the case 201 can be deformable together with the flexible display unit 251, taking into account the characteristics of the flexible display unit 251.
- a battery (not shown in this figure) located in the mobile terminal 200 may also be deformable in cooperation with the flexible display unit 261, taking into account the characteristic of the flexible display unit 251.
- One technique to implement such a battery is to use a stack and folding method of stacking battery cells.
- the deformation of the flexible display unit 251 is not limited to being performed by an external force.
- the flexible display unit 251 can be deformed into the second state from the first state by a user command, application command, or the like.
- FIG. 5 is an exploded perspective view of a mobile terminal according to an embodiment of the present disclosure.
- the mobile terminal faces the front in the Z-axis direction
- the Y-axis direction indicates the upper part of the mobile terminal
- the X-axis direction indicates the right side of the mobile terminal.
- the mobile terminal may include a glass 300, a first touch sensor 402, a second touch sensor 404, an optical sheet 420, a light guide plate 430, a reflective sheet 440, a frame 500, a back cover 510 and a PCB 520.
- User touch can be applied to the first touch sensor 402 and a user fingerprint can be obtained through the second touch sensor 404.
- a user fingerprint can be obtained through the second touch sensor 404 using a swipe scheme and a static/area scheme.
- the PCB 520 is connected to the first and second touch sensors 402 and 404 and thus touch and a fingerprint can be provided by the user to the PCB 520.
- the first touch sensor 402 and the second touch sensor 404 have an overlap area.
- the first touch sensor 402 and the second touch sensor 404 are separately formed, as shown in FIG. 5 . Since the first touch sensor 402 is separated from the second touch sensor 404, the gap between the glass 300 and the light guide plate 430 changes in the length direction (Y-axis direction) of the mobile terminal.
- FIG. 6 is an exploded perspective view of a mobile terminal that does not form part of the invention.
- the first touch sensor 402 and the second touch sensor 404 can be integrated, as shown in FIG. 6 .
- the gap between the glass 300 and the light guide plate 430 can be uniform in the length direction (Y-axis direction) of the mobile terminal.
- the glass 300 forms a screen and the light guide plate 430 receives light from a light source (not shown) and provides the light to the first and second touch sensors 402 and 404. Light having passed through the first and second touch sensors 402 and 404 is emitted to the glass 300.
- the optical sheet 420 can be located between the light guide plate 430 and the first and second touch sensors 402 and 404.
- the reflective sheet 440 can reflect light from the light guide plate 430 toward the backside of the mobile terminal (negative direction of Z-axis).
- FIGS. 7 and 8 are cross-sectional views of the mobile terminals shown in FIGS. 5 and 6 .
- the mobile terminal includes a light source 410 providing light to the light guide plate 430 and may include a mirror 411 reflecting light.
- the light guide plate 430 does not provide light.
- the light guide plate 430 receives light from the light source 410. Part of the light injected into the light guide plate 430 is directly projected to the glass 300 and the remaining part of the light reaches the first and second touch sensors 402 and 404 while being reflected inside the light guide plate 430.
- the refractive index of the light guide plate 430 is higher than that of air, light, which is projected to the surface of the light guide plate 430 at an angle narrower than a critical angle, is totally reflected and propagated inside of the light guide plate 430. In this manner, light emitted from the light source 410 is propagated. Light projected to the first and second touch sensors 402 and 404 from the light guide plate 430 will be described later.
- the first touch sensor 402 and the second touch sensor 404 are separately formed, as shown in FIG. 7 .
- the thickness in the Z-axis direction varies along the Y-axis.
- the first touch sensor 402 and the second touch sensor 404 can be integrated, as shown in FIG. 8 .
- the thickness in the Z-axis direction can be uniform in the Y-axis.
- Such a sensing electrode density difference may provide a nonuniform light quantity to the glass 300.
- FIG. 9 illustrates a second touch region 320 located at the lower part of the glass 300.
- the display area 300 includes the second touch region 320 and a first touch region 330. Touch input of the user can be applied to the first touch region 330. A fingerprint of the user can be obtained through the second touch region 320.
- the second touch region 320 located at the lower part of the display area 300 the user can conveniently manipulate the mobile terminal with one hand. Particularly, the user can conveniently manipulate the mobile terminal when a thumb of the user is registered in the mobile terminal.
- FIG. 10 illustrates the second touch region 320 located at the lower part of the glass 300 without coming into contact with the left and right edges of the glass 300.
- the second touch region 320 when the second touch region 320 is provided to the lower part of the display area 300, the fingerprint of the user's thumb can be easily recognized through the second touch region 320. Particularly, since the user touches the center of the second touch region 320 when using the second touch region 320 in most cases, the user can use the fingerprint without inconvenience even when the second touch region 320 is located on the glass 30 as shown in FIG. 10 . Furthermore, when the width of the second touch region 320 is reduced, the volume of the mobile terminal can be decreased.
- FIG. 11 illustrates the second touch region 320 located at the lower part of the glass 300, coming into contact with the right edge thereof.
- the second touch region 320 may be located at the lower left part of the glass 300, which is not shown. In this case, a left-handed user can conveniently use the mobile terminal.
- FIG. 12 illustrates the second touch region 320 located at a side edge of the glass 300 and FIG. 13 illustrates the second touch region 320 located at the upper part of the glass 300, both cases being arrangements that do not form part of the invention.
- the second touch region 320 may occupy at least part of the glass 300, coming into contact with an edge 310 of the glass 300. Since the second touch region 320 may be thicker than the first touch region 330, it is technically possible to easily implement the second touch region 320 coming into contact with the edge 310 of the glass 300 rather than the second touch region 320 being located at the center of the glass 300.
- FIG. 14 illustrates a further arrangement that does not form part of the invention, in which the second touch region 320 is provided as an independent panel corresponding to a separate glass.
- the independent panel is controlled separately from the glass 300.
- the glass 300 is a rectangular panel, whereas the independent panel 370 is a trapezoidal panel in contact with the glass 300.
- the independent panel Since the independent panel is driven independently of the glass 300, the independent panel can be maintained in an active state all the time while the glass 300 operates in the activate state and deactivated state. In this case, when the second touch region 320 is formed on the independent panel 30, the user can activate the mobile terminal while the glass 300 is in the deactivated state through fingerprint recognition using the independent panel.
- FIG. 15 illustrates the first and second touch sensors of the mobile terminal shown in FIG. 9 .
- the second touch region 320 can recognize the user's fingerprint as well as user touch. Since the second touch sensor needs to have a higher resolution than the gap between a valley and a ridge of the user's fingerprint, density of transmission lines 406 and reception lines 408 in the second touch region 320, necessary for fingerprint acquisition, may need to be higher than that in the first touch region 330.
- the transmission lines 406 and the reception lines 408 of the first and second touch sensors 402 and 404 may have the form of a line segment as shown in FIG. 15 .
- the transmission lines 406 and the reception lines 408 can be referred to as sensing electrodes. That is, the interval between the sensing electrodes constituting the first touch sensor 402 may differ from that of the second touch sensor 404.
- the first and second touch sensors 402 and 404 may sense touch using the principle that capacitance between the transmission lines 406 and the reception lines 408 varies according to whether touch is applied to the touch sensors. Since the density of the sensing electrodes constituting the second touch sensor 404 may need to be higher than that of the first touch sensor 402, capacitance in the second touch sensor 404 may be higher than capacitance in the first touch sensor 402, as shown in FIG. 16(a) . That is, C2 can be higher than C1. Accordingly, the intensity of a driving pulse transmitted through the transmission lines 406 of the second touch sensor 404 may differ from that of the first touch sensor 402, as shown in FIG. 16(b) . That is, V2 may be higher than V1.
- the density of the sensing electrodes constituting the second touch sensor 404 may need to be higher than that of the first touch sensor 402. Accordingly, a time interval for transmitting a signal through the transmission lines 406 of the second touch sensor 404 may be shorter than that of the first touch sensor 402, as shown in FIG. 17 .
- the density of the sensing electrodes constituting the second touch sensor 404 can be three times higher than that of the first touch sensor 402.
- Tx-linel and Tx-line2 indicate transmission lines 406 of the first touch sensor 402.
- Tx-line1,1 to Tx-line1,3 indicate transmission lines 406 of the second touch sensor 404, which correspond to Tx-linel.
- Tx-line2,1 to Tx-line2,3 indicate transmission lines 406 of the second touch sensor 404, which correspond to Tx-line2. That is, the interval between the transmission lines 406 of the second touch sensor 404 can be three times shorter than the interval between the transmission lines 406 of the first touch sensor 402 in FIG. 17(b) .
- transmission time T2 allocated to each transmission line 406 of the second touch sensor 404 in order to obtain input at the same cycle may be three times shorter than transmission time T1 allocated to each transmission line 406 of the first touch sensor 402. That is, T1 may be three times T2.
- the second touch sensor 404 may consume more power than the first touch sensor 402. Accordingly, the second touch sensor 404 may advantageously be driven only when necessary.
- the first touch sensor 402 has a portion corresponding to the second touch region 320, and thus the first touch sensor 402 can sense whether the user touches the second touch region 320.
- the second touch sensor 404 in a deactivated state can be activated.
- the glass may be configured as the second touch region 320.
- the numbers of transmission lines 406 and reception lines 408 are excessively large and thus the volume of the mobile terminal may increase. Accordingly, provision of separate transmission lines and reception lines corresponding to the second touch region 320 may be considered.
- the first touch sensor 402 may be formed by arranging transmission lines 406 and reception lines 408 such that the transmission lines 406 and the reception lines 408 correspond to the first touch region 330
- the second touch sensor 404 may be formed by arranging separate transmission lines 406 and reception lines 408 such that the transmission lines 406 and the reception lines 408 correspond to the second touch region 320.
- the transmission lines 406 and the reception lines 408 constituting the first touch sensor 402 and the second touch sensor 404 may be formed in a diamond pattern, as shown in FIG. 18 , which does not form part of the invention.
- the first touch sensor 402 can correspond to the first touch region 330 and have 12 transmission lines 406 and 9 reception lines 408, as shown in FIG. 18 .
- the transmission lines 406 and the reception lines 408 can be formed in a diamond pattern.
- the second touch sensor 404 may be integrated with the first touch sensor 402.
- the second touch sensor 404 can be integrated with the first touch sensor 402 by forming a plurality of transmission lines 406 or reception lines 408 inside of each diamond pattern of the first touch sensor 402.
- FIG. 19(a) shows the cross section of the glass 300, the first touch sensor 402 and the optical sheet 420 corresponding to a portion of the first touch region 330 outside of the second touch region 320 of the mobile terminal shown in FIG. 5 in the thickness direction (Z-axis direction)
- FIG. 19(b) shows the cross section of the glass 300, the first and second touch sensors 402 and 404 and the optical sheet 420 corresponding to the second touch region 320 of the mobile terminal shown in FIG. 5 in the thickness direction (Z-axis direction).
- FIG. 19(c) shows the cross section of the glass 300, the first and second touch sensors 402 and 404 and the optical sheet 420 corresponding to the second touch region 320 of the mobile terminal shown in FIG. 6 , which does not form part of the invention, in the thickness direction (Z-axis direction).
- a portion of the first touch region 330, outside of the second touch region 320, includes the glass 300, the first touch sensor 402 and the optical sheet 420 which are laminated.
- the second touch region 320 includes the glass 300, the first touch sensor 402, the second touch sensor 404 and the optical sheet 420, which are laminated, as shown in FIG. 19(b) .
- the first touch sensor 402 and the second touch sensor 404 are integrated, which does not form part of the invention, the second touch region 320 includes the glass 300, the first touch sensor 402 and the optical sheet 420, which are laminated, as shown in FIG. 19(c) .
- the thickness of the portion of the first touch region 300 outside of the second touch region 320 is D1 and the thickness of the second touch region 320 is D2, D2 may be greater than D1 due to the thickness of the second touch sensor 404. Accordingly, the thickness of the light guide plate in the Z-axis direction may not be uniform. In this case, if a conventional light guide plate based on uniform thickness in the Z-axis direction is used, the portion of the light guide plate, which corresponds to the second touch region 320, may be thicker than the other portion and thus the second touch region 320 may be darker than the other region.
- the thickness of the first touch region 330 and the thickness of the second touch region 320 are identical as D3.
- the density of the first touch sensor 402 corresponding to the portion of the first touch region 330 outside of the second touch region 430 may be lower than the density of the first and second touch sensors 402 and 404 corresponding to the second touch region 320. Accordingly, when the conventional light guide plate is used, the second touch region may be darker than the other region.
- the light guide plate 430 shown in FIG. 20 may include a light guide plate body 431 and windows 433.
- the light source 410 may be located at one side of the light guide plate body 431 to provide light to the light guide plate body 431.
- the light guide plate body 431 may have a shape corresponding to the glass.
- the light guide plate body 431 can receive light from the light source 410 and propagate the light while reflecting the same.
- the refractive index of the light guide plate body 431 is higher than that of air, at least part of light propagated inside of the light guide plate 431 can be totally reflected.
- the windows 433 can be formed on the side of the light guide plate 431, which faces the glass.
- the windows 433 may have a protrusion shape protruding from the surface of the light guide plate body 431, as shown in FIG. 21(a) , or a hole shape recessed from the surface of the light guide plate body 431, as shown in FIG. 21(b) .
- the windows 433 may be configured as a combination of protrusions and holes, which is not shown.
- Each window 433 may have a wall extending from the surface of the light guide plate body 431 to the glass, as shown in FIG. 21(a) .
- the angle between the surface of the light guide plate body 431 and the wall can be "a".
- the window 433 can take a pillar shape.
- the cross section of the window 433 is a circle, the window 433 can have a cylindrical shape.
- the angle "a" is an obtuse angle and the cross section of the window 433 is a circle, the window 433 can have a truncated cone shape.
- the window 433 can have an inverted truncated cone shape, as shown in FIG. 21(a) . Since the refractive index of the window 433 may be the same as the light guide plate body 431, the quantity of light emitted from the window 433 may be determined by the angle "a".
- Each window 433 may have the shape of a hole recessed from the surface of the light guide plate body 431, as shown in FIG. 21(b) .
- the window 433 can have a wall extending from the surface of the light guide plate body 431 to the inside thereof.
- the angle between the surface of the light guide plate body 431 and the wall can be "a". Since the refractive index of the window 433 may be the same as the light guide plate body 431, the quantity of light emitted from the window 433 may be determined by the angle "a".
- the angle "a" between the wall of the window 433 and the surface of the light guide plate body 431 may be changed according to position.
- the angle “a” can be an obtuse angle in the case of a wall close to the light source 410, whereas the angle “a” can be an acute angle in the case of a wall at a distance from the light source 410. It is possible to control the quantity of light provided to the glass on the basis of distance from the light source 410 by changing the angle "a" according to position.
- the light guide plate body 431 When light propagated inside of the light guide plate body 431 reaches the windows 433, the light has an injection angle different from that at the surface of the light guide plate body 431 and thus the light can pass through the windows 433 without being totally reflected. The light that has passed through the windows 433 can be propagated to the glass.
- FIG. 22 illustrates a light guide plate structure according to an embodiment of the present invention.
- the light guide plate 430 may include light diffusing particles 434 contained in the light guide plate body 431. When visible light is projected to the light diffusing particles 434, the light diffusing particles 434 can reflect the visible light in a plurality of directions.
- a plurality of light diffusing particles 434 may be provided.
- the light diffusing particles 434 may be a polymer, particularly, polystyrene.
- the light diffusing particles 434 may have a uniform or nonuniform distribution inside the light guide plate body 431.
- the light guide plate 430 may include the windows 433 provided on the side thereof, which faces the glass 300, as shown in FIG. 22 .
- a plurality of windows 433 may be uniformly distributed on the light guide plate 430.
- the spatial density of the light diffusing particles 434 may be varied in the Y-axis direction.
- the quantity of light provided from the light guide plate 434 to the glass 300 can be controlled to be uniform by adjusting the spatial density of the light diffusing particles 434. Even if the windows 433 are uniformly distributed, the quantity of light provided from the light guide plate 434 to the glass 300 can be controlled by adjusting the spatial density of the light diffusing particles 434.
- FIG. 23 illustrates a light guide plate structure that does not form part of the present invention.
- the light guide plate 430 may include a lower pattern 436 formed on one side of the light guide plate body 431, which faces the reflective sheet 440.
- the lower pattern 436 may be formed on the external surface of the light guide plate body 431 or inside of the light guide plate body 431.
- the lower pattern 436 may have a conic shape, as shown in FIG. 23 .
- the lower pattern 436 may have the form of a pillar in parallel with the X-axis.
- the cross section of the pillar may be a triangle, rectangle, trapezoid, circle or oval.
- a reflection pattern of light incident upon the lower pattern 436 may depend on the shape of the lower pattern 436.
- the spatial density of the lower pattern 436 may be uniform or nonuniform in the Y-axis direction.
- the spatial distribution of the quantity of light provided to the glass 300 may depend on the spatial density of the lower pattern 436.
- the quantity of light provided from the light guide plate 430 to the glass 300 may be controlled to be uniform by adjusting the spatial density of the lower pattern 436. Even if the windows 433 are not uniformly distributed, it is possible to control the quantity of light provided from the light guide plate 430 to the glass 300 by adjusting the spatial density of the lower pattern 436.
- the windows 433 may all have the same shape, and the density of the windows 433 may be varied according to distance from the light source, as shown in FIG. 24(a) .
- a structure in which the glass and a touch sensor are laminated may have a uniform thickness.
- brightness of light provided to the glass may decrease according to distance (distance on the Y-axis) from the light source. Accordingly, to compensate for brightness decrease, the density of the windows 433 can be increased as the distance from the light source increases.
- FIG. 24(b) which represents FIG. 24(a) as a graph
- the spatial density of the windows 433 can be increased according to distance on the Y-axis.
- the light diffusing particles 434 may be distributed, as shown in FIG. 25(a) .
- the light diffusing particles 434 can be uniformly distributed on one side of the light guide plate body 431. Even if the light diffusing particles 434 are not uniformly distributed, brightness of light provided to the glass can be controlled to be uniform by adjusting the spatial density of the light diffusing particles 434.
- the spatial density of the optical diffusing particles 434 may be varied according to distance in the Y-axis direction, as shown in FIG. 25(b) .
- the spatial density of the light diffusing particles 434 may increase as the distance in the Y-axis direction increases.
- the lower pattern 436 can be distributed as shown in FIG. 26(a) . It is possible to control brightness of light provided to the glass by adjusting the spatial density of the lower pattern 436.
- the lower pattern 436 may have a conic shape, a truncated conic shape or a faceted conic shape.
- the spatial density of the lower pattern 436 may be varied according to distance in the Y-axis direction, as shown in FIG. 26(b) .
- the spatial density of the lower pattern 436 may increase as the distance in the Y-axis direction increases.
- the spatial density of the lower pattern 436 may be varied in the X-axis direction, which is not shown in FIG. 26 .
- the lower pattern 436 has the shape of a pillar in contact with one side of the light guide plate body 431, the lower pattern 436 can be arranged such that components of the lower pattern 436 are in a line or not in the length direction.
- FIG. 27 illustrates the spatial density of the windows of the mobile terminal shown in FIG. 9 .
- the second touch region 320 is located at the lower part of the glass.
- the windows 433 may have the same shape.
- the brightness of light passing through the glass can be made uniform by controlling the brightness of light provided from a region of the light guide plate 430, which corresponds to the second touch region 320, to be higher than the brightness of light provided from a region of the light guide plate 430, which corresponds to the first touch region 330.
- the thicknesses of the first and second touch sensors are not uniform or, in an arrangement that does not form part of the invention, the density of the first and second touch sensors is not uniform in the direction in which the light guide plate faces the glass, as described above, the distribution pattern of the windows 433 may differ from the window distribution pattern shown in FIG. 24 .
- the spatial density of the windows 433 formed on the light guide plate body 431 corresponding to the second touch region 320 in the light guide plate 430 can increase as the distance from the light source increases (in the Y-axis direction).
- the thickness of the first and second touch sensors is discontinuously varied or, in an arrangement not forming part of the invention, the density of the first and second touch sensors may be discontinuously varied in the direction in which the light guide 430 faces the glass 300 at the boundary of the second touch region 320 along the Y-axis. That is, brightness of light provided to the glass may be discontinuous at a portion of the light guide plate 430 corresponding to the boundary of the second touch region 430. Since brightness of light provided to the glass may depend on the density of the windows 433, the density of the windows 433 can be discontinuously varied at the portion of the light guide plate 430 corresponding to the boundary of the second touch region 430.
- the specific transparent hole area can be defined as the area of windows 433 per unit area of the light guide plate 430 at a portion of the light guide plate 430.
- the specific transparent hole area can depend on the size and density of the windows 433.
- As a method for changing the specific transparent hole area it is possible to consider a method for varying the density of the windows 433 while maintaining the shape of the windows 433, a method for varying the size of the windows 433 while maintaining the density of the windows 433 and a method for simultaneously varying the density and size of the windows 433.
- the density of the windows 433 can correspond to the specific transparent hole area of the windows 433. Accordingly, the specific transparent hole area can increase as the distance from the light source increases and can be discontinuously varied at a portion of the light guide plate 430, which corresponds to the boundary of the second touch region 320 and the first touch region 330, as shown in FIG. 27(a) .
- the density of the windows 433 or the specific transparent hole area at the boundary of the second touch region 320 is considered.
- a point of the boundary of the second touch region 320, which corresponds to the first touch region 330, may be referred to as a first point 340
- a point of the second touch region 320, adjacent to the first point may be referred to as a second point 350
- a point of the first touch region 330, which is adjacent to the first point and corresponds to a point outside the second touch region 320 may be referred to as a third point 360.
- density dnest2 of the windows 433 at the second point 350 may be higher than density dnest3 of the windows 433 at the third point 360.
- a specific transparent hole area at the second point 350 may be wider than a specific transparent hole area at the third point 360.
- the window distribution pattern in FIG. 27(b) may differ from the window distribution pattern in FIG. 24(b) .
- the window distribution pattern may be discontinuously changed at a point of the light guide plate 430, which corresponds to a point of the boundary of the second touch region 320, which overlaps with the first touch region 330.
- the window density or the specific transparent hole area continuously increases in the case of FIG. 24 , whereas the window density of the specific transparent hole area increases, decreases and then increases in the case of FIG. 27 .
- FIG. 28 illustrates the density of light diffusing particles of the mobile terminal shown in FIG. 9 .
- the second touch region 320 is located at the lower part of the glass.
- a plurality of light diffusing particles 434 having the same shape may be provided.
- the light diffusing particles 434 may be uniformly distributed.
- the spatial density of the light diffusing particles 434 may be varied along the Y-axis inside of the light guide plate body 431, as shown in FIG. 28(a) .
- the thickness or density of the first and second touch sensors is discontinuously varied in the direction in which the light guide plate 430 faces the glass at the boundary of the second touch region 320 along the Y-axis. Accordingly, brightness of light provided from the light guide plate 430 to the glass may be discontinuous and thus the brightness of light provided from the light guide plate 430 to the glass can be controlled by adjusting the spatial density of the light diffusing particles 434 at a portion of the light guide plate 430, which corresponds to the boundary of the second touch region 320.
- the spatial density of the light diffusing particles 434 can be represented as a graph, as shown in FIG. 28(b).
- FIG. 28(b) represents FIG. 28(a) as a graph along the Y-axis.
- the spatial density dnest1 of the light diffusing particles 434 at the first point 340 may be higher than the spatial density dnest2 of the light diffusing particles 434 at the second point 350.
- the spatial density dnest2 may be higher than the spatial density dnest3 of the light diffusing particles 434 at the third point 360.
- FIG. 29 illustrates the spatial density of the lower pattern of the mobile terminal shown in FIG. 9 .
- the second touch region 320 is located at the lower part of the glass.
- the lower pattern 436 may include a plurality of elements having the same shape.
- the elements of the lower pattern 436 may be uniformly distributed.
- the spatial density of the lower pattern 436 may be varied along the Y-axis inside of the light guide plate body 431 or on one side of the light guide plate body 431, as shown in FIG. 29(a) .
- the thickness or density of the first and second touch sensors is discontinuously varied in the direction in which the light guide plate 430 faces the glass at the boundary of the second touch region 320 along the Y-axis. Accordingly, brightness of light provided from the light guide plate 430 to the glass may be discontinuous. Accordingly, the brightness of light provided to the glass can be controlled by adjusting the spatial density of the lower pattern 436 at a portion of the light guide plate 430, which corresponds to the boundary of the second touch region 320.
- the spatial density of the lower pattern 436 can be represented as a graph, as shown in FIG. 29(b) .
- the spatial density dnest1 of the lower pattern 436 at the first point 340 may be higher than the spatial density dnest2 of the lower pattern 436 at the second point 350, and the spatial density dnst2 may be higher than spatial density dnest3 of the lower pattern 436 at the third point 360.
- FIG. 30 illustrates the spatial density of the windows of the mobile terminal of FIG. 10 .
- the windows 433 may have the same shape.
- the second touch region 320 is located at the center of the lower part of the glass (in the X-axis direction).
- the spatial density in a direction A-A' in FIG. 8 is shown in FIG. 30(b) and the spatial density in a direction B-B' in FIG. 8 is shown in FIG. 30(c) .
- a region defined by a dotted line is a region of the light guide plate 430, which corresponds to the second touch region 320. That is, the dotted line is a line on the light guide plate 430, which corresponds to a portion of the boundary of the second touch region 320, which overlaps with the first touch region 330.
- the spatial density or the specific transparent hole area of the windows 433 can continuously increase as the distance from the light source increases and can discontinuously vary at a portion of the light guide plate 430, which corresponds to the boundary between the second touch region 320 and the first touch region 330.
- a window density pattern along the Y-axis is as shown in FIG. 30(b) .
- V1 a distance between the start point of the Y-axis and a point on the Y-axis
- V2 a distance between the start point and the edge of the light guide plate 430
- the window density pattern along the X-axis is as shown in FIG. 30(c) .
- the density of the windows 433 is uniform along the X-axis, abruptly increases or discontinuously increases at H1 and then remains uniform, and abruptly decreases or discontinuously decreases at H3, as shown in FIG. 30(c) .
- the density of the windows 433 may increase or decrease rather than being uniform in sections 0 to H1, H1 to H2 and H2 to H3.
- the spatial density of the windows 433, shown in FIG. 30(c) is characterized in that the spatial density abruptly increases or discontinuously increases at H1 and abruptly decreases or discontinuously decreases at H2.
- the density dnest2 of the windows 433 at the second point 350 may be equal to or higher than the density dnest3 of the windows 433 at the third point 360.
- the specific transparent hole area at the second point 350 may be equal to or wider than the specific transparent hole area at the third point 360.
- FIG. 31 illustrates the density of the light diffusing particles of the mobile terminal shown in FIG. 10 .
- the light diffusing particles 434 may have the same shape and may be uniformly distributed.
- a region defined by a dotted line is a region of the light guide plate 430 corresponding to the second touch region 320. That is, the dotted line is a line on the light guide plate 430, which corresponds to a portion of the boundary of the second touch region 320, which overlaps with the first touch region 330.
- the spatial density of the light diffusing particles 434 can continuously increase as the distance from the light source increases and can discontinuously vary at a portion of the light guide plate 430, which corresponds to the boundary between the second touch region 320 and the first touch region 330.
- a spatial density pattern of the light diffusing particles 434 is shown in FIG. 31(b) .
- V1 a distance between the start point of the Y-axis and a point on the Y-axis
- V2 a distance between the start point and the edge of the light guide plate 430
- the spatial density of the light diffusing particles 434 along the X-axis is shown in FIG. 31(c) .
- the spatial density of the light diffusing particles 434 is uniform along the X-axis, abruptly increases or discontinuously increases at H1 and then remains uniform, and abruptly decreases or discontinuously decreases at H3, as shown in FIG. 31(c) .
- the spatial density of the light diffusing particles 434 may have a quasi-uniform pattern rather than being uniform in sections 0 to HI, H1 to H2 and H2 to H3.
- the spatial density of the light diffusing particles 434, shown in FIG. 31(c) is characterized in that the spatial density abruptly increases or discontinuously increases at H1 and abruptly decreases or discontinuously decreases at H2.
- FIG. 32 illustrates the density of the lower pattern of the mobile terminal shown in FIG. 10 .
- the lower pattern 436 may have a plurality of elements having the same shape and uniformly distributed.
- a region defined by a dotted line is a region of the light guide plate 430, which corresponds to the second touch region 320. That is, the dotted line is a line on the light guide plate 430, which corresponds to a portion of the boundary of the second touch region 320, which overlaps with the first touch region 330.
- the spatial density of the lower pattern 436 can continuously increase as the distance from the light source increases and can discontinuously vary at a portion of the light guide plate 430, which corresponds to the boundary between the second touch region 320 and the first touch region 330.
- a spatial density pattern of the lower pattern 436 is as shown in FIG. 32(b) .
- the density of the lower pattern 436 increases until V1, discontinuously decreases or abruptly decreases at V1 and increases until V2.
- the spatial density of the lower pattern 436 is uniform along the X-axis, abruptly increases or discontinuously increases at H1 and then remains uniform, and abruptly decreases or discontinuously decreases at H3.
- the spatial density of the lower pattern 436 may have a quasi-uniform pattern rather than being uniform in sections 0 to H1, H1 to H2 and H2 to H3.
- the spatial density of the lower pattern 436, shown in FIG. 32(c) is characterized in that the spatial density abruptly increases or discontinuously increases at H1 and abruptly decreases or discontinuously decreases at H2.
- FIG. 33 illustrates the size of the windows of the mobile terminal shown in FIG. 9 .
- the second touch region 320 is located at the lower part of the glass. While the density of the windows 433 is uniform in the area of the light guide plate 430, the size of the windows 433 may vary. When the window size increases, the quantity of light provided to the glass through the windows 433 can increase.
- the size of the windows 433 may increase as the distance from a region of the light guide plate 430, corresponding to the second touch region 320, increases in the Y-axis direction. Furthermore, the size of the windows 433 may increase as the distance from a region of the light guide plate 430, corresponding to the outside of the second touch region 320, increases in the Y-axis direction. However, the size of the windows 433 may be discontinuously varied at a portion of the light guide plate 430, which corresponds to a point of the boundary of the second touch region 320, which overlaps with the first touch region 330.
- the size of the windows 433 can increase in the Y-axis direction.
- the size of the windows 433 may abruptly decrease or discontinuously decrease at a point of the boundary of the second touch region 320, which corresponds to the first touch region 330.
- a mobile terminal 800 according to an embodiment of the present invention can obtain a fingerprint of a user 700 through at least part of the glass.
- FIG. 34 illustrates a change of the state of the mobile terminal using the fingerprint of the user.
- the controller may obtain fingerprint information of the user 700 through the second touch sensor during touch operation of the user 700 through the first touch sensor and activate the mobile terminal 800 according to the touch operation and the obtained fingerprint information. For example, when the user 700 touches the second touch region in a deactivated state of the mobile terminal 800 and maintains the touch for a predetermined time, the controller can recognize a fingerprint of the user 700 and activate the mobile terminal 800.
- the controller may be the controller 180 shown in FIG. 1 .
- the controller may recognize the fingerprint of the user 700 and determine whether the mobile terminal 800 is activated.
- the controller may obtain the fingerprint information at the end point of touch operation.
- the controller can prepare for acquisition of the fingerprint of the user 700 by recognizing first touch of the user 700 and activate the mobile terminal 800 or a specific application by obtaining the fingerprint of the user 700 from second touch of the user 700.
- FIG. 35 illustrates a change of an application accessible in a locked state of the mobile terminal through user fingerprint recognition.
- the mobile terminal 800 is locked and an application less related to security, such as a camera application, can be executed in the locked mobile terminal.
- an application related to security e.g., a gallery application
- the user 700 can use fingerprint recognition.
- the controller can identify the user 700 by obtaining the fingerprint of the user 700.
- the camera application can be executed.
- the controller can change an icon 820 linked to the camera application in a locked state to an icon 830 linked to the gallery application, as shown in FIG. 35(b) . That is, different applications can be activated according to the fingerprint information obtained through the second touch region 320.
- the different applications may be applications related to each other.
- the camera application and the gallery application may be closely related applications.
- the galley application can be directly executed when the user 700 touches the icon 830 linked to the gallery application, as shown in FIG. 35(c) .
- the application may be executed in different modes in a case in which input applied to the icon is obtained through the first touch region 330 and in a case in which input applied to the icon is obtained through the second touch region 320.
- a music playback application when input for executing a music playback application is obtained through the first touch region 330, only a music file stored in the mobile terminal 800 can be played, as shown in FIG. 36(a) .
- the controller can not only control a music file stored in the mobile terminal 800 to be played but also enable the user to purchase a sound source in on-line sound source markets or to edit a music file stored in the mobile terminal 800, as shown in FIG. 36(b) .
- the controller can activate an execution mode in which sound source purchase requiring identification of the user 700 is available, as shown in FIG. 36(b) .
- the controller can activate an execution mode in which a music file requiring no identification of the user 700 can be played, as shown in the right part of FIG. 36(a) . That is, the controller can differently activate the execution mode of an application linked to an icon located in the second touch region 320 according to fingerprint information obtained through the icon.
- the controller may obtain first input of moving an icon 850 located in the first touch region 330 outside of the second touch region 320 to the second touch region 320 through drag-and-drop. That is, the user 700 can move the icon 850 from the first touch region 330 outside of the second touch region 320 to the inside of the second touch region 320 through drag-and-drop, as shown in FIG. 37(a) .
- the controller can activate an application linked to the icon 850 located in the second touch region according to fingerprint information obtained through the icon 850. That is, the controller can differently activate the execution mode of the application linked to the icon according to whether the fingerprint obtained through the second touch sensor 404 is authenticated.
- the controller may obtain second input of moving the icon 850 located in the second touch region 320 to a portion of the first touch region 330, outside of the second touch region 320, according to drag-and-drop. That is, the user 700 can move the icon 850 from the second touch region 320 to the outside of the second touch region 320 through drag-and-drop, as shown in FIG. 37(b) .
- the controller can activate the application linked to the icon 850 according to input obtained through the first touch sensor 402.
- the icon 850 linked to the application which requires fingerprint information be located in the second touch region 320
- a case in which the icon 850 is located in the first touch region 330 outside of the second touch region 320 may be considered.
- the controller may induce the user 700 to input their fingerprint by changing the color or brightness of the second touch region 320 while outputting an audible alarm, for example, as shown in FIG. 38(a) .
- the controller may obtain fingerprint information through drag-and-hold, for example, as shown in FIG. 38(b) . That is, when the user 700 drags the icon 850 to the second touch region 320 and then maintains the icon 850 for a predetermined time, the controller can obtain the fingerprint information of the user 700 through the second touch sensor 404.
- the controller of the mobile terminal can obtain fingerprint information through the second touch sensor 404 (S10).
- operation of the mobile terminal may depend on whether the mobile terminal is locked or not (S20).
- the controller can activate an "owner home screen" of the mobile terminal, which can be used by the owner of the mobile terminal (S40).
- the controller can activate a "guest home screen" of the mobile terminal, which can be used by anyone (S50).
- operation of the mobile terminal may depend on whether an icon linked to an application is touched (S60).
- the icon is touched, whether the fingerprint obtained through the second touch sensor 404 is authenticated is checked (S70).
- the controller can control the application linked to the icon to be executed without restriction (S90).
- the controller can control the application linked to the icon to be restrictively executed (S80).
- the application can be executed with a specific function thereof restricted, the execution of the application can be restricted or the mobile terminal can be locked such that access to the mobile terminal is restricted.
- the controller can discard the fingerprint information obtained through the second touch sensor 404 and wait for the next signal input.
- the above-described method of controlling the mobile terminal may be written as computer programs and may be implemented in digital microprocessors that execute the programs using a computer readable recording medium.
- the method of controlling the mobile terminal may be executed through software.
- the software may include code segments that perform required tasks. Programs or code segments may also be stored in a processor readable medium or may be transmitted according to a computer data signal combined with a carrier through a transmission medium or communication network.
- the computer readable recording medium may be any data storage device that can store data that can be thereafter read by a computer system. Examples of the computer readable recording medium may include read-only memory (ROM), random-access memory (RAM), CD-ROMs, DVD-ROM, DVD-RAM, magnetic tapes, floppy disks, optical data storage devices.
- ROM read-only memory
- RAM random-access memory
- CD-ROMs CD-ROMs
- DVD-ROM DVD-ROM
- DVD-RAM magnetic tapes
- floppy disks optical data storage devices.
- optical data storage devices optical data storage devices.
- the computer readable recording medium may also be distributed over network coupled computer systems so that the computer readable code is stored and executed in a distribution fashion.
- a mobile terminal may include a first touch screen configured to display a first object, a second touch screen configured to display a second object, and a controller configured to receive a first touch input applied to the first object and to link the first object to a function corresponding to the second object when receiving a second touch input applied to the second object while the first touch input is maintained.
- a method may be provided of controlling a mobile terminal that includes displaying a first object on the first touch screen, displaying a second object on the second touch screen, receiving a first touch input applied to the first object, and linking the first object to a function corresponding to the second object when a second touch input applied to the second object is received while the first touch input is maintained.
- any reference in this specification to "one embodiment,” “an embodiment,” “example embodiment,” etc. means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the invention.
- the appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment.
Description
- The present disclosure relates to a mobile terminal capable of recognizing a fingerprint through the glass thereof and maintaining uniform brightness.
- As functions of terminals such as personal computers, laptop computers and cellular phones diversify, the terminals become multimedia players having multiple functions for capturing pictures or moving images, playing music, moving image files and games and receiving broadcast programs.
- Terminals can be categorized as mobile terminals and stationary terminals. The mobile terminals can be further comprised of handheld terminals and vehicle mounted terminals according to whether users can personally carry the terminals. Conventional terminals including mobile terminals provide an increasing number of complex and various functions.
- To support and enhance the increasing number of functions in a terminal, improving a structural part and/or a software part of the terminal would be desirable.
- Mobile terminal security is reinforced by introducing fingerprint recognition to mobile terminals. Particularly, a technique of recognizing a user fingerprint is mainly used. While a fingerprint sensor is provided separately from the glass of a mobile terminal in many cases, a mobile terminal having a fingerprint recognition function provided to the glass thereof can be considered for design and space utilization of the mobile terminal.
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US 2013/127784 A1 discloses an illumination system in display for hiding optical contrast features.CN 104 035 620 A discloses a fingerprint collecting device of low cost and thin thickness, low-power consumption. - However, the thickness of the glass may increase since a fingerprint is composed of ridges and valleys and thus a sensor having a resolution less than a gap between a ridge and a valley needs to be provided to the glass.
- To support and enhance this mobile terminal function, improvement of a structural part and/or a software part of the mobile terminal can be considered.
- The present disclosure provides a mobile terminal capable of recognizing a fingerprint through the glass thereof and maintaining uniform brightness.
- The invention is defined by the appended independent claim. Further aspects of the invention are defined by the dependent claims.
- The advantages of the mobile terminal according to the present invention will now be described.
- According to the present invention, there is an advantage that at least a part of the glass can be used to recognize the fingerprint of the user
- In addition, according to the present invention, there is an advantage that a uniform luminance can be maintained with respect to the entire region of the glass.
- Further scope of applicability of the present invention will become apparent from the following detailed description. It should be understood, however, that the detailed description and specific examples, such as the preferred embodiments of the invention, are given by way of illustration only, since various changes and modifications within the scope of the invention as claimed will be apparent to those skilled in the art.
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FIG. 1 is a block diagram of a mobile terminal useful for understanding an embodiment; -
FIG. 2 is a front perspective view of the mobile terminal according to an embodiment; -
FIG. 3 is a rear perspective view of the mobile terminal according to an embodiment; -
FIG. 4 is a conceptual view of a deformable mobile terminal; -
FIGS. 5 is an exploded perspective view of a mobile terminal according to an embodiment of the present disclosure -
Fig. 6 is an exploded perspective view of a mobile terminal that does not form part of the invention; -
FIGS. 7 and 8 are cross-sectional views of the mobile terminals shown inFIGS. 5 and 6 ; -
FIGS. 9 to 11 illustrate various embodiments with respect to a second touch region of the glass of the mobile -
Figs. 12 to 14 illustration various arrangements with respect to a second touch region that do not form part of the invention; -
FIG. 15 illustrates structures of first and second touch sensors in the mobile terminal ofFIG. 9 ; -
FIG. 16 illustrates capacitance and driving pulse signals of the first and second touch sensors according to an embodiment of the present disclosure; -
FIG. 17 illustrates signal transmission of the first and second touch sensors according to an embodiment of the present disclosure; -
FIG. 18 illustrates sensing electrode configurations of the first and second touch sensors according to an arrangement that does not form part of the invention; -
FIG. 19 illustrates a laminated structure of the mobile terminal according to an embodiment of the present disclosure; -
FIGS. 20 to 22 illustrate light guide plate structures according to various embodiments of the present disclosure -
FIG. 23 illustrates a light guide plate structure that does not form part of the invention; -
FIGS. 24 to 26 illustrate a mobile terminal light guide plate having no fingerprint recognition function; -
FIG. 27 illustrates spatial density of a window in the mobile terminal ofFIG. 9 ; -
FIG. 28 illustrates spatial density of light diffusing particles in the mobile terminal ofFIG. 9 ; -
FIG. 29 illustrates spatial density of a lower pattern in the mobile terminal ofFIG. 9 ; -
FIG. 30 illustrates spatial density of a window in the mobile terminal ofFIG. 10 ; -
FIG. 31 illustrates spatial density of light diffusing particles in the mobile terminal ofFIG. 10 ; -
FIG. 32 illustrates spatial density of a lower pattern in the mobile terminal ofFIG. 10 ; -
FIG. 33 illustrates the size of the window of the mobile terminal ofFIG. 9 ; -
FIG. 34 illustrates change of a mobile terminal state using a fingerprint of a user; -
FIG. 35 illustrates a mobile terminal in which applications accessible in a locked state are changed through user fingerprint recognition; -
FIG. 36 illustrates a mobile terminal in which an execution mode is changed according to whether fingerprint information is provided; -
FIG. 37 illustrates a mobile terminal in which icons can be moved; -
FIG. 38 illustrates a mobile terminal operating when an icon linked to an application requiring fingerprint information is located outside of the second touch region; and -
FIG. 39 is a flowchart illustrating use of fingerprint information in the mobile terminal. - Arrangements and embodiments may now be described more fully with reference to the accompanying drawings, in which exemplary embodiments may be shown. Embodiments may, however, be embodied in many different forms and should not be construed as being limited to embodiments set forth herein; rather, embodiments may be provided so that this disclosure will be thorough and complete, and will fully convey the concept to those skilled in the art.
- A mobile terminal may be described below with reference to the accompanying drawings. In the following description, suffixes "module" and "unit" may be given to components of the mobile terminal in consideration of only facilitation of description and do not have meanings or functions discriminated from each other.
- The mobile terminal may include a cellular phone, a smart phone, a laptop computer, a digital broadcasting terminal, personal digital assistants (PDA), a portable multimedia player (PMP), a navigation system and/or so on.
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FIG. 1 is a block diagram of a mobile terminal useful for understanding an embodiment. Other embodiments, configurations and arrangements may also be provided. - As shown, the
mobile terminal 100 may include a wireless communication unit 110 (or radio communication unit), an audio/video (A/V)input unit 120, a user input unit 130, asensing unit 140, anoutput unit 150, amemory 160, aninterface 170, acontroller 180, and apower supply 190. The components shown inFIG. 1 may be essential parts and/or a number of components included in themobile terminal 100 may vary. Components of themobile terminal 100 may now be described. - The
wireless communication unit 110 may include at least one module that enables radio communication between themobile terminal 100 and a radio communication system or between themobile terminal 100 and a network in which themobile terminal 100 is located. For example, thewireless communication unit 110 may include abroadcasting receiving module 111, amobile communication module 112, awireless Internet module 113, a short range communication module 114 (or local area communication module), and a location information module 115 (or position information module). - The
broadcasting receiving module 111 may receive broadcasting signals and/or broadcasting related information from an external broadcasting management server through a broadcasting channel. The broadcasting channel may include a satellite channel and a terrestrial channel, and the broadcasting management server may be a server that generates and transmits broadcasting signals and/or broadcasting related information or a server that receives previously created broadcasting signals and/or broadcasting related information and transmits the broadcasting signals and/or broadcasting related information to a terminal. - The broadcasting signals may include not only TV broadcasting signals, radio broadcasting signals, and data broadcasting signals but also signals in the form of a combination of a TV broadcasting signal and a radio broadcasting signal. The broadcasting related information may be information on a broadcasting channel, a broadcasting program or a broadcasting service provider, and may be provided even through a mobile communication network. In the latter case, the broadcasting related information may be received by the
mobile communication module 112. - The broadcasting related information may exist in various forms. For example, the broadcasting related information may exist in the form of an electronic program guide (EPG) of a digital multimedia broadcasting (DMB) system or in the form of an electronic service guide (ESG) of a digital video broadcast-handheld (DVB-H) system.
- The
broadcasting receiving module 111 may receive broadcasting signals using various broadcasting systems. More particularly, thebroadcasting receiving module 111 may receive digital broadcasting signals using digital broadcasting systems such as a digital multimedia broadcasting-terrestrial (DMB-T) system, a digital multimedia broadcasting-satellite (DMB-S) system, a media forward link only (MediaFLO) system, a DVB-H and integrated services digital broadcast-terrestrial (ISDB-T) systems. Thebroadcasting receiving module 111 may receive signals from broadcasting systems providing broadcasting signals other than the above-described digital broadcasting systems. - The broadcasting signals and/or broadcasting related information received through the
broadcasting receiving module 111 may be stored in thememory 160. Themobile communication module 112 may transmit/receive a radio signal to/from at least one of a base station, an external terminal and a server on a mobile communication network. The radio signal may include a voice call signal, a video telephony call signal or data in various forms according to transmission and reception of text/multimedia messages. - The
wireless Internet module 113 may correspond to a module for wireless Internet access and may be included in themobile terminal 100 or may be externally attached to themobile terminal 100. Wireless LAN (WLAN or Wi-Fi), wireless broadband (Wibro), world interoperability for microwave access (Wimax), high speed downlink packet access (HSDPA) and so on may be used as a wireless Internet technique. - The short
range communication module 114 may correspond to a module for short range communication. Further, Bluetooth®, radio frequency identification (RFID), infrared data association (IrDA), ultra wideband (UWB) and/or ZigBee® may be used as a short range communication technique. - The
location information module 115 may confirm or obtain a location or a position of themobile terminal 100. Thelocation information module 115 may obtain position information by using a global navigation satellite system (GNSS). The GNSS is a terminology describing a radio navigation satellite system that revolves around the earth and transmits reference signals to predetermined types of radio navigation receivers such that the radio navigation receivers can determine their positions on the earth's surface or near the earth's surface. The GNSS may include a global positioning system (GPS) of the United States, Galileo of Europe, a global orbiting navigational satellite system (GLONASS) of Russia, COMPASS of China, and a quasi-zenith satellite system (QZSS) of Japan, for example. - A global positioning system (GPS) module is a representative example of the
location information module 115. The GPS module may calculate information on distances between one point or object and at least three satellites and information on a time when distance information is measured and apply trigonometry to the obtained distance information to obtain three-dimensional position information on the point or object according to latitude, longitude and altitude at a predetermined time. - A method of calculating position and time information using three satellites and correcting the calculated position and time information using another satellite may also be used. Additionally, the GPS module may continuously calculate a current position in real time and calculate velocity information using the location or position information.
- The A/
V input unit 120 may input (or receive) an audio signal and/or a video signal. The A/V input unit 120 may include acamera 121 and amicrophone 122. Thecamera 121 may process image frames of still images or moving images obtained by an image sensor in a video telephony mode or a photographing mode. The processed image frames may be displayed on adisplay 151, which may be a touch screen. - The image frames processed by the
camera 121 may be stored in thememory 160 or may be transmitted to an external device through thewireless communication unit 110. Themobile terminal 100 may also include at least twocameras 121. - The
microphone 122 may receive an external audio signal in a call mode, a recording mode and/or a speech recognition mode, and themicrophone 122 may process the received audio signal into electric audio data. The audio data may then be converted into a form that can be transmitted to a mobile communication base station through themobile communication module 112 and output in the call mode. Themicrophone 122 may employ various noise removal algorithms (or noise canceling algorithms) for removing or reducing noise generated when the external audio signal is received. - The user input unit 130 may receive input data for controlling operation of the mobile terminal 100 from a user. The user input unit 130 may include a keypad, a dome switch, a touch pad (constant voltage/capacitance), a jog wheel, a jog switch and/or so on.
- The
sensing unit 140 may sense a current state of themobile terminal 100, such as an open/close state of themobile terminal 100, a position of themobile terminal 100, whether a user touches themobile terminal 100, a direction of themobile terminal 100, and acceleration/deceleration of themobile terminal 100, and thesensing unit 140 may generate a sensing signal for controlling operation of themobile terminal 100. For example, in an example of a slide phone, thesensing unit 140 may sense whether the slide phone is opened or closed. Further, thesensing unit 140 may sense whether thepower supply 190 supplies power and/or whether theinterface 170 is connected to an external device. Thesensing unit 140 may also include aproximity sensor 141. Thesensing unit 140 may sense a motion of themobile terminal 100. - The
output unit 150 may generate visual, auditory and/or tactile output, and theoutput unit 150 may include thedisplay 151, anaudio output module 152, analarm 153 and ahaptic module 154. Thedisplay 151 may display information processed by themobile terminal 100. Thedisplay 151 may display a user interface (UI) and/or a graphic user interface (GUI) related to a telephone call when themobile terminal 100 is in the call mode. Thedisplay 151 may also display a captured and/or received image, a UI or a GUI when themobile terminal 100 is in the video telephony mode or the photographing mode. - The
display 151 may include at least one of a liquid crystal display, a thin film transistor liquid crystal display, an organic light-emitting diode display, a flexible display and/or a three-dimensional display. Thedisplay 151 may be of a transparent type or a light transmissive type. That is, thedisplay 151 may include a transparent display. - The transparent display may be a transparent liquid crystal display. A rear structure of the
display 151 may also be of a light transmissive type. Accordingly, a user may see an object located behind the body (of the mobile terminal 100) through the transparent area of the body of themobile terminal 100 that is occupied by thedisplay 151. - The
mobile terminal 100 may also include at least twodisplays 151. For example, themobile terminal 100 may include a plurality ofdisplays 151 that are arranged on a single face at a predetermined distance or integrated displays. The plurality ofdisplays 151 may also be arranged on different sides. - When the
display 151 and a sensor sensing touch (hereafter referred to as a touch sensor) form a layered structure that is referred to as a touch screen, thedisplay 151 may be used as an input device in addition to an output device. The touch sensor may be in the form of a touch film, a touch sheet, and/or a touch pad, for example. - The touch sensor may convert a variation in pressure applied to a specific portion of the
display 151 or a variation in capacitance generated at a specific portion of thedisplay 151 into an electric input signal. The touch sensor may sense pressure of touch as well as position and area of the touch. - When the user applies a touch input to the touch sensor, a signal corresponding to the touch input may be transmitted to a touch controller. The touch controller may then process the signal and transmit data corresponding to the processed signal to the
controller 180. Accordingly, thecontroller 180 may detect a touched portion of thedisplay 151. - The proximity sensor 141 (of the sensing unit 140) may be located in an internal region of the
mobile terminal 100, surrounded by the touch screen, and/or near the touch screen. Theproximity sensor 141 may sense an object approaching a predetermined sensing face or an object located near theproximity sensor 141 using an electromagnetic force or infrared rays without having mechanical contact. Theproximity sensor 141 may have a lifetime longer than a contact sensor and may thus have a wide application in themobile terminal 100. - The
proximity sensor 141 may include a transmission type photo-electric sensor, a direct reflection type photo-electric sensor, a mirror reflection type photo-electric sensor, a high-frequency oscillating proximity sensor, a capacitive proximity sensor, a magnetic proximity sensor, and/or an infrared proximity sensor. A capacitive touch screen may be constructed such that proximity of a pointer is detected through a variation in an electric field according to the proximity of the pointer. The touch screen (touch sensor) may be classified as aproximity sensor 141. - For ease of explanation, an action of the pointer approaching the touch screen without actually touching the touch screen may be referred to as a proximity touch and an action of bringing the pointer into contact with the touch screen may be referred to as a contact touch. The proximity touch point of the pointer on the touch screen may correspond to a point of the touch screen at which the pointer is perpendicular to the touch screen.
- The
proximity sensor 141 may sense the proximity touch and a proximity touch pattern (e.g., a proximity touch distance, a proximity touch direction, a proximity touch velocity, a proximity touch time, a proximity touch position, a proximity touch moving state, etc.). Information corresponding to the sensed proximity touch action and proximity touch pattern may then be displayed on the touch screen. - The
audio output module 152 may output audio data received from thewireless communication unit 110 or stored in thememory 160 in a call signal receiving mode, a telephone call mode or a recording mode, a speech recognition mode and a broadcasting receiving mode. Theaudio output module 152 may output audio signals related to functions, such as a call signal incoming tone and a message incoming tone, performed in themobile terminal 100. Theaudio output module 152 may include a receiver, a speaker, a buzzer, and/or the like. Theaudio output module 152 may output sounds through an earphone jack. The user may hear the sounds by connecting an earphone to the earphone jack. - The
alarm 153 may output a signal for indicating generation of an event of themobile terminal 100. For example, an alarm may be generated when receiving a call signal, receiving a message, inputting a key signal, and/or inputting a touch. Thealarm 153 may also output signals in forms different from video signals or audio signals, for example, a signal for indicating generation of an event through vibration. The video signals and/or the audio signals may also be output through thedisplay 151 or theaudio output module 152. - The
haptic module 154 may generate various haptic effects that the user can feel. One example of the haptic effects is vibration. An intensity and/or pattern of vibration generated by thehaptic module 154 may also be controlled. For example, different vibrations may be combined and output or may be sequentially output. - The
haptic module 154 may generate a variety of haptic effects including an effect of stimulus according to an arrangement of pins vertically moving against a contact skin surface, an effect of stimulus according to a jet force or sucking force of air through a jet hole or a sucking hole, an effect of stimulus of rubbing the skin, an effect of stimulus according to contact of an electrode, an effect of stimulus using an electrostatic force, and an effect according to a reproduction of cold and warmth using an element capable of absorbing or radiating heat in addition to vibrations. - The
haptic module 154 may not only transmit haptic effects through direct contact but may also allow the user to feel haptic effects through a kinesthetic sense of the user's fingers or arms. Themobile terminal 100 may also include a plurality ofhaptic modules 154. - The
memory 160 may store a program for operations of thecontroller 180 and/or temporarily store input/output data such as a phone book, messages, still images, and/or moving images. Thememory 160 may also store data about vibrations and sounds in various patterns that are output from when a touch input is applied to the touch screen. - The
memory 160 may include at least a flash memory, a hard disk type memory, a multimedia card micro type memory, a card type memory, such as SD or XD memory, a random access memory (RAM), a static RAM (SRAM), a read-only memory (ROM), an electrically erasable programmable ROM (EEPROM), a programmable ROM (PROM) magnetic memory, a magnetic disk and/or an optical disk. Themobile terminal 100 may also operate in relation to a web storage that performs a storing function of thememory 160 on the Internet. - The
interface 170 may serve as a path to external devices connected to themobile terminal 100. Theinterface 170 may receive data from the external devices or power and transmit the data or power to internal components of themobile terminal 100 or transmit data of themobile terminal 100 to the external devices. For example, theinterface 170 may include a wired/wireless headset port, an external charger port, a wired/wireless data port, a memory card port, a port for connecting a device having a user identification module, an audio I/O port, a video I/O port, and/or an earphone port. - The
interface 170 may also interface with a user identification module that is a chip that stores information for authenticating authority to use themobile terminal 100. For example, the user identification module may be a user identity module (UIM), a subscriber identity module (SIM) and/or a universal subscriber identity module (USIM). An identification device (including the user identification module) may also be manufactured in the form of a smart card. Accordingly, the identification device may be connected to themobile terminal 100 through a port of theinterface 170. - The
interface 170 may also be a path through which power from an external cradle is provided to themobile terminal 100 when themobile terminal 100 is connected to the external cradle or a path through which various command signals input by the user through the cradle are transmitted to themobile terminal 100. The various command signals or power input from the cradle may be used as signals for confirming whether themobile terminal 100 is correctly set in the cradle. - The
controller 180 may control overall operations of themobile terminal 100. For example, thecontroller 180 may perform control and processing for voice communication, data communication and/or video telephony. Thecontroller 180 may also include a multimedia module 181 for playing multimedia. The multimedia module 181 may be included in thecontroller 180 or may be separated from thecontroller 180. - The
controller 180 may perform a pattern recognition process capable of recognizing handwriting input or picture-drawing input applied to the touch screen as characters or images. Thepower supply 190 may receive external power and internal power and provide power required for operations of the components of themobile terminal 100 under control of thecontroller 180. - According to hardware implementation, embodiments may be implemented using at least one of application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gate arrays (FPGAs), processors, controllers, micro-controllers, microprocessors, and/or electrical units for executing functions. Embodiments may be implemented by the
controller 180. - According to software implementation, embodiments such as procedures or functions may be implemented with a separate software module that executes at least one function or operation. Software codes may be implemented according to a software application written in an appropriate software language. The software codes may be stored in the
memory 160 and executed by thecontroller 180. -
FIG. 2 is a front perspective view of a mobile terminal (or a handheld terminal) according to an embodiment. - The
mobile terminal 100 may be a bar type terminal body. However, embodiments are not limited to a bar type terminal and may be applied to terminals of various types including slide type, folder type, swing type and/or swivel type terminals having at least two bodies that are relatively movably combined. - The terminal body may include a case (a casing, a housing, a cover, etc.) that forms an exterior of the
mobile terminal 100. In this embodiment, the case may be divided into afront case 101 and arear case 102. Various electronic components may be arranged in the space formed between thefront case 101 and therear case 102. At least one middle case may be additionally provided between thefront case 101 and therear case 102. - The cases may be formed of plastics through injection molding or made of a metal material such as stainless steel (STS) or titanium (Ti).
- The
display 151, theaudio output unit 152, thecamera 121, the user input unit 130/131 and 132, themicrophone 122 and theinterface 170 may be arranged (or provided) in the terminal body, and more specifically may be arranged (or provided) in thefront case 101. - The
display 151 may occupy most of the main face of thefront case 101. Theaudio output unit 152 and thecamera 121 may be arranged in a region in proximity to one of both ends of thedisplay 151 and the user input unit 131, and themicrophone 122 may be located in a region in proximity to another end of thedisplay 151. The user input unit 132 and theinterface 170 may be arranged (or provided) on sides of thefront case 101 and therear case 102. - The user input unit 130 may receive commands for controlling operation of the
mobile terminal 100, and may include a plurality of operating units 131 and 132. The operating units 131 and 132 may be referred to as manipulating portions and may employ any tactile manner in which a user operates the operating units 131 and 132 while having tactile feeling. - The first and second operating units 131 and 132 may receive various inputs. For example, the first operating unit 131 may receive commands such as start, end and scroll and the second operating unit 132 may receive commands such as control of a volume of sound output from the
audio output unit 152 or conversion of thedisplay 151 to a touch recognition mode. -
FIG. 3 is a rear perspective view of the mobile terminal (shown inFIG. 2 ) according to an embodiment. - Referring to
FIG. 2 , a camera 121' may be additionally attached to the rear side of the terminal body (i.e., the rear case 102). The camera 121' may have a photographing direction opposite to that of the camera 121 (shown inFIG. 2 ) and may have pixels different from those of the camera 121 (shown inFIG. 2 ) - For example, it may be desirable that the
camera 121 has a low number of pixels such that thecamera 121 may capture an image of a face of a user and transmit the image to a receiving part in case of video telephony while the camera 121' has a high number of pixels because the camera 121' captures an image of a general object and does not immediately transmit the image in many cases. Thecameras 121 and 121' may be attached (or provided) to the terminal body such that thecameras 121 and 121' may rotate or pop up. - A
flash bulb 123 and amirror 124 may be additionally provided in proximity to the camera 121'. Theflash bulb 123 may light an object when the camera 121' takes a picture of the object. Themirror 124 may be used for the user to look at his/her face in the mirror when the user wants to self-photograph himself/herself using the camera 121'. - An audio output unit 152' may be additionally provided on the rear side of the terminal body. The audio output unit 152' may achieve a stereo function with the audio output unit 152 (shown in
FIG. 2 ) and may be used for a speaker phone mode when the terminal is used for a telephone call. - A broadcasting signal receiving antenna may be additionally attached (or provided) to the side of the terminal body in addition to an antenna for telephone calls. The antenna constructing a part of the broadcasting receiving module 111 (shown in
FIG. 1 ) may be set in the terminal body such that the antenna may be pulled out of the terminal body. - The
power supply 191 for providing power to themobile terminal 100 may be set in the terminal body. Thepower supply 191 may be included in the terminal body or may be detachably attached to the terminal body. - A touch pad for sensing touch may be attached to the
rear case 102. The touch pad may be of a light transmission type, such as thedisplay 151. In this example, if thedisplay 151 outputs visual information through both sides thereof, the visual information may be recognized (or determined) by the touch pad. The information output through both sides of thedisplay 151 may be controlled by the touch pad. Otherwise, a display may be additionally attached (or provided) to the touch pad such that a touch screen may be arranged (or provided) even in therear case 102. - The touch pad may operate in connection with the
display 151 of thefront case 101. The touch pad may be located in parallel with thedisplay 151 behind thedisplay 151. The touch panel may be identical to or smaller than thedisplay 151 in size. -
FIG. 3 is a view for explaining a proximity depth of a proximity sensor. - As shown in
FIG. 3 , when a pointer (such as a user's finger) approaches the touch screen, the proximity sensor located inside or near the touch screen may sense the approach of the pointer, and may output a proximity signal. - The proximity sensor may be constructed such that the proximity sensor outputs a proximity signal according to a distance between the pointer approaching the touch screen and the touch screen (referred to as "proximity depth").
- The distance in which the proximity signal is output when the pointer approaches the touch screen may be referred to as a detection distance. The proximity depth may be determined by using a plurality of proximity sensors having different detection distances and by comparing proximity signals respectively output from the proximity sensors.
-
FIG. 4 is a conceptual view of a deformable mobile terminal In this figure,mobile terminal 200 is shown havingdisplay unit 251, which is a type of display that is deformable by an external force. This deformation, which includesdisplay unit 251 and other components ofmobile terminal 200, may include any of curving, bending, folding, twisting, rolling, and combinations thereof. Thedeformable display unit 251 may also be referred to as a "flexible display unit." In some implementations, theflexible display unit 251 may include a general flexible display, electronic paper (also known as e-paper), and combinations thereof. In general,mobile terminal 200 may be configured to include features that are the same or similar to that ofmobile terminal 100 ofFIGS. 1-3 . - The flexible display of
mobile terminal 200 is generally formed as a lightweight, non-fragile display, which still exhibits characteristics of a conventional flat panel display, but is instead fabricated on a flexible substrate which can be deformed as noted previously. - The term e-paper may be used to refer to a display technology employing the characteristic of a general ink, and is different from the conventional flat panel display in view of using reflected light. E-paper is generally understood as changing displayed information using a twist ball or via electrophoresis using a capsule.
- When in a state that the
flexible display unit 251 is not deformed (for example, in a state with an infinite radius of curvature and referred to as a first state), a display region of theflexible display unit 251 includes a generally flat surface. When in a state that theflexible display unit 251 is deformed from the first state by an external force (for example, a state with a finite radius of curvature and referred to as a second state), the display region may become a curved surface or a bent surface. As illustrated, information displayed in the second state may be visual information output on the curved surface. The visual information may be realized in such a manner that a light emission of each unit pixel (sub-pixel) arranged in a matrix configuration is controlled independently. The unit pixel denotes an elementary unit for representing one color. - According to one alternative arrangement, the first state of the
flexible display unit 251 may be a curved state (for example, a state of being curved from up to down or from right to left), instead of being in flat state. In this case, when an external force is applied to theflexible display unit 251, theflexible display unit 251 may transition to the second state such that the flexible display unit is deformed into the flat state (or a less curved state) or into a more curved state. - If desired, the
flexible display unit 251 may implement a flexible touch screen using a touch sensor in combination with the display. When a touch is received at the flexible touch screen, thecontroller 180 can execute certain control corresponding to the touch input. In general, the flexible touch screen is configured to sense touch and other input while in both the first and second states. - One option is to configure the
mobile terminal 200 to include a deformation sensor which senses the deforming of theflexible display unit 251. The deformation sensor may be included in thesensing unit 140. - The deformation sensor may be located in the
flexible display unit 251 or thecase 201 to sense information related to the deforming of theflexible display unit 251. Examples of such information related to the deforming of theflexible display unit 251 may be a deformed direction, a deformed degree, a deformed position, a deformed amount of time, an acceleration with which the deformedflexible display unit 251 is restored, and the like. Other possibilities include almost any type of information which can be sensed in response to the curving of the flexible display unit or sensed while theflexible display unit 251 is transitioning into, or existing in, the first and second states. - In some arrangements,
controller 180 or another component can change information displayed on theflexible display unit 251, or generate a control signal for controlling a function of themobile terminal 200, based on the information related to the deforming of theflexible display unit 251. Such information is typically sensed by the deformation sensor. - The
mobile terminal 200 is shown having acase 201 for accommodating theflexible display unit 251. Thecase 201 can be deformable together with theflexible display unit 251, taking into account the characteristics of theflexible display unit 251. - A battery (not shown in this figure) located in the
mobile terminal 200 may also be deformable in cooperation with the flexible display unit 261, taking into account the characteristic of theflexible display unit 251. One technique to implement such a battery is to use a stack and folding method of stacking battery cells. - The deformation of the
flexible display unit 251 is not limited to being performed by an external force. For example, theflexible display unit 251 can be deformed into the second state from the first state by a user command, application command, or the like. -
FIG. 5 is an exploded perspective view of a mobile terminal according to an embodiment of the present disclosure. InFIG. 5 , the mobile terminal faces the front in the Z-axis direction, the Y-axis direction indicates the upper part of the mobile terminal and the X-axis direction indicates the right side of the mobile terminal. - The mobile terminal according to the present disclosure may include a
glass 300, afirst touch sensor 402, asecond touch sensor 404, anoptical sheet 420, alight guide plate 430, areflective sheet 440, aframe 500, aback cover 510 and aPCB 520. - User touch can be applied to the
first touch sensor 402 and a user fingerprint can be obtained through thesecond touch sensor 404. - A user fingerprint can be obtained through the
second touch sensor 404 using a swipe scheme and a static/area scheme. ThePCB 520 is connected to the first andsecond touch sensors PCB 520. As shown inFIG. 5 , thefirst touch sensor 402 and thesecond touch sensor 404 have an overlap area. - The
first touch sensor 402 and thesecond touch sensor 404 are separately formed, as shown inFIG. 5 . Since thefirst touch sensor 402 is separated from thesecond touch sensor 404, the gap between theglass 300 and thelight guide plate 430 changes in the length direction (Y-axis direction) of the mobile terminal. -
FIG. 6 is an exploded perspective view of a mobile terminal that does not form part of the invention. Thefirst touch sensor 402 and thesecond touch sensor 404 can be integrated, as shown inFIG. 6 . In this case, the gap between theglass 300 and thelight guide plate 430 can be uniform in the length direction (Y-axis direction) of the mobile terminal. - The
glass 300 forms a screen and thelight guide plate 430 receives light from a light source (not shown) and provides the light to the first andsecond touch sensors second touch sensors glass 300. Theoptical sheet 420 can be located between thelight guide plate 430 and the first andsecond touch sensors reflective sheet 440 can reflect light from thelight guide plate 430 toward the backside of the mobile terminal (negative direction of Z-axis). -
FIGS. 7 and 8 are cross-sectional views of the mobile terminals shown inFIGS. 5 and 6 . The mobile terminal includes alight source 410 providing light to thelight guide plate 430 and may include amirror 411 reflecting light. Thelight guide plate 430 does not provide light. Thelight guide plate 430 receives light from thelight source 410. Part of the light injected into thelight guide plate 430 is directly projected to theglass 300 and the remaining part of the light reaches the first andsecond touch sensors light guide plate 430. - Since the refractive index of the
light guide plate 430 is higher than that of air, light, which is projected to the surface of thelight guide plate 430 at an angle narrower than a critical angle, is totally reflected and propagated inside of thelight guide plate 430. In this manner, light emitted from thelight source 410 is propagated. Light projected to the first andsecond touch sensors light guide plate 430 will be described later. - The
first touch sensor 402 and thesecond touch sensor 404 are separately formed, as shown inFIG. 7 . In this case, the thickness in the Z-axis direction varies along the Y-axis. Alternatively, in an arrangement not forming part of the invention thefirst touch sensor 402 and thesecond touch sensor 404 can be integrated, as shown inFIG. 8 . In this case, the thickness in the Z-axis direction can be uniform in the Y-axis. Even when thefirst touch sensor 402 and thesecond touch sensor 404 are integrated and thus the thickness is uniform, as shown inFIG. 8 , there may be a difference between densities of sensing electrodes constituting thefirst touch sensor 402 and thesecond touch sensor 404. Such a sensing electrode density difference may provide a nonuniform light quantity to theglass 300. -
FIG. 9 illustrates asecond touch region 320 located at the lower part of theglass 300. Thedisplay area 300 includes thesecond touch region 320 and afirst touch region 330. Touch input of the user can be applied to thefirst touch region 330. A fingerprint of the user can be obtained through thesecond touch region 320. With thesecond touch region 320 located at the lower part of thedisplay area 300 the user can conveniently manipulate the mobile terminal with one hand. Particularly, the user can conveniently manipulate the mobile terminal when a thumb of the user is registered in the mobile terminal. -
FIG. 10 illustrates thesecond touch region 320 located at the lower part of theglass 300 without coming into contact with the left and right edges of theglass 300. - As described above, when the
second touch region 320 is provided to the lower part of thedisplay area 300, the fingerprint of the user's thumb can be easily recognized through thesecond touch region 320. Particularly, since the user touches the center of thesecond touch region 320 when using thesecond touch region 320 in most cases, the user can use the fingerprint without inconvenience even when thesecond touch region 320 is located on theglass 30 as shown inFIG. 10 . Furthermore, when the width of thesecond touch region 320 is reduced, the volume of the mobile terminal can be decreased. -
FIG. 11 illustrates thesecond touch region 320 located at the lower part of theglass 300, coming into contact with the right edge thereof. - When the user is a right-handed person and registers their thumb through fingerprint recognition, user convenience can be improved and technical implementation can be enhanced by locating the
second touch region 320 at the lower right part of theglass 300. - The
second touch region 320 may be located at the lower left part of theglass 300, which is not shown. In this case, a left-handed user can conveniently use the mobile terminal. -
FIG. 12 illustrates thesecond touch region 320 located at a side edge of theglass 300 andFIG. 13 illustrates thesecond touch region 320 located at the upper part of theglass 300, both cases being arrangements that do not form part of the invention. - The
second touch region 320 may occupy at least part of theglass 300, coming into contact with anedge 310 of theglass 300. Since thesecond touch region 320 may be thicker than thefirst touch region 330, it is technically possible to easily implement thesecond touch region 320 coming into contact with theedge 310 of theglass 300 rather than thesecond touch region 320 being located at the center of theglass 300. -
FIG. 14 illustrates a further arrangement that does not form part of the invention, in which thesecond touch region 320 is provided as an independent panel corresponding to a separate glass. Here, the independent panel is controlled separately from theglass 300. Referring toFIG. 14 , theglass 300 is a rectangular panel, whereas the independent panel 370 is a trapezoidal panel in contact with theglass 300. - Since the independent panel is driven independently of the
glass 300, the independent panel can be maintained in an active state all the time while theglass 300 operates in the activate state and deactivated state. In this case, when thesecond touch region 320 is formed on theindependent panel 30, the user can activate the mobile terminal while theglass 300 is in the deactivated state through fingerprint recognition using the independent panel. -
FIG. 15 illustrates the first and second touch sensors of the mobile terminal shown inFIG. 9 . As shown inFIG. 15 , thesecond touch region 320 can recognize the user's fingerprint as well as user touch. Since the second touch sensor needs to have a higher resolution than the gap between a valley and a ridge of the user's fingerprint, density oftransmission lines 406 andreception lines 408 in thesecond touch region 320, necessary for fingerprint acquisition, may need to be higher than that in thefirst touch region 330. Thetransmission lines 406 and thereception lines 408 of the first andsecond touch sensors FIG. 15 . Here, thetransmission lines 406 and thereception lines 408 can be referred to as sensing electrodes. That is, the interval between the sensing electrodes constituting thefirst touch sensor 402 may differ from that of thesecond touch sensor 404. - The first and
second touch sensors transmission lines 406 and the reception lines 408 varies according to whether touch is applied to the touch sensors. Since the density of the sensing electrodes constituting thesecond touch sensor 404 may need to be higher than that of thefirst touch sensor 402, capacitance in thesecond touch sensor 404 may be higher than capacitance in thefirst touch sensor 402, as shown inFIG. 16(a) . That is, C2 can be higher than C1. Accordingly, the intensity of a driving pulse transmitted through thetransmission lines 406 of thesecond touch sensor 404 may differ from that of thefirst touch sensor 402, as shown inFIG. 16(b) . That is, V2 may be higher than V1. - The density of the sensing electrodes constituting the
second touch sensor 404 may need to be higher than that of thefirst touch sensor 402. Accordingly, a time interval for transmitting a signal through thetransmission lines 406 of thesecond touch sensor 404 may be shorter than that of thefirst touch sensor 402, as shown inFIG. 17 . - For example, the density of the sensing electrodes constituting the
second touch sensor 404 can be three times higher than that of thefirst touch sensor 402. InFIG. 17(a) , Tx-linel and Tx-line2 indicatetransmission lines 406 of thefirst touch sensor 402. InFIG. 17(b) , Tx-line1,1 to Tx-line1,3 indicatetransmission lines 406 of thesecond touch sensor 404, which correspond to Tx-linel. Tx-line2,1 to Tx-line2,3 indicatetransmission lines 406 of thesecond touch sensor 404, which correspond to Tx-line2. That is, the interval between thetransmission lines 406 of thesecond touch sensor 404 can be three times shorter than the interval between thetransmission lines 406 of thefirst touch sensor 402 inFIG. 17(b) . In this case, transmission time T2 allocated to eachtransmission line 406 of thesecond touch sensor 404 in order to obtain input at the same cycle may be three times shorter than transmission time T1 allocated to eachtransmission line 406 of thefirst touch sensor 402. That is, T1 may be three times T2. - Since the
second touch sensor 404 needs to transmit signals while changing signals more frequently than thefirst touch sensor 402, thesecond touch sensor 404 may consume more power than thefirst touch sensor 402. Accordingly, thesecond touch sensor 404 may advantageously be driven only when necessary. - The
first touch sensor 402 has a portion corresponding to thesecond touch region 320, and thus thefirst touch sensor 402 can sense whether the user touches thesecond touch region 320. When user touch applied to thesecond touch region 320 is sensed, thesecond touch sensor 404 in a deactivated state can be activated. - The glass may be configured as the
second touch region 320. In this case, however, the numbers oftransmission lines 406 andreception lines 408 are excessively large and thus the volume of the mobile terminal may increase. Accordingly, provision of separate transmission lines and reception lines corresponding to thesecond touch region 320 may be considered. - In an arrangement that does not form part of the invention, the
first touch sensor 402 may be formed by arrangingtransmission lines 406 andreception lines 408 such that thetransmission lines 406 and thereception lines 408 correspond to thefirst touch region 330, and thesecond touch sensor 404 may be formed by arrangingseparate transmission lines 406 andreception lines 408 such that thetransmission lines 406 and thereception lines 408 correspond to thesecond touch region 320. - The
transmission lines 406 and thereception lines 408 constituting thefirst touch sensor 402 and thesecond touch sensor 404 may be formed in a diamond pattern, as shown inFIG. 18 , which does not form part of the invention. - For example, the
first touch sensor 402 can correspond to thefirst touch region 330 and have 12transmission lines reception lines 408, as shown inFIG. 18 . Here, thetransmission lines 406 and thereception lines 408 can be formed in a diamond pattern. - The
second touch sensor 404 may be integrated with thefirst touch sensor 402. For example, as shown inFIG. 18 , thesecond touch sensor 404 can be integrated with thefirst touch sensor 402 by forming a plurality oftransmission lines 406 orreception lines 408 inside of each diamond pattern of thefirst touch sensor 402. -
FIG. 19(a) shows the cross section of theglass 300, thefirst touch sensor 402 and theoptical sheet 420 corresponding to a portion of thefirst touch region 330 outside of thesecond touch region 320 of the mobile terminal shown inFIG. 5 in the thickness direction (Z-axis direction) andFIG. 19(b) shows the cross section of theglass 300, the first andsecond touch sensors optical sheet 420 corresponding to thesecond touch region 320 of the mobile terminal shown inFIG. 5 in the thickness direction (Z-axis direction).FIG. 19(c) shows the cross section of theglass 300, the first andsecond touch sensors optical sheet 420 corresponding to thesecond touch region 320 of the mobile terminal shown inFIG. 6 , which does not form part of the invention, in the thickness direction (Z-axis direction). - A portion of the
first touch region 330, outside of thesecond touch region 320, includes theglass 300, thefirst touch sensor 402 and theoptical sheet 420 which are laminated. When thefirst touch sensor 402 and the second touch sensor are separately formed, according to the invention, thesecond touch region 320 includes theglass 300, thefirst touch sensor 402, thesecond touch sensor 404 and theoptical sheet 420, which are laminated, as shown inFIG. 19(b) . When thefirst touch sensor 402 and thesecond touch sensor 404 are integrated, which does not form part of the invention, thesecond touch region 320 includes theglass 300, thefirst touch sensor 402 and theoptical sheet 420, which are laminated, as shown inFIG. 19(c) . - When the
first touch sensor 402 and thesecond touch sensor 404 are separately formed, as shown inFIGS. 19(a) and 19(b) , the thickness of the portion of thefirst touch region 300 outside of thesecond touch region 320 is D1 and the thickness of thesecond touch region 320 is D2, D2 may be greater than D1 due to the thickness of thesecond touch sensor 404. Accordingly, the thickness of the light guide plate in the Z-axis direction may not be uniform. In this case, if a conventional light guide plate based on uniform thickness in the Z-axis direction is used, the portion of the light guide plate, which corresponds to thesecond touch region 320, may be thicker than the other portion and thus thesecond touch region 320 may be darker than the other region. - When the
first touch sensor 402 and thesecond touch sensor 404 are integrated, as shown inFIG. 19(c) , the thickness of thefirst touch region 330 and the thickness of thesecond touch region 320 are identical as D3. However, the density of thefirst touch sensor 402 corresponding to the portion of thefirst touch region 330 outside of thesecond touch region 430 may be lower than the density of the first andsecond touch sensors second touch region 320. Accordingly, when the conventional light guide plate is used, the second touch region may be darker than the other region. - The
light guide plate 430 shown inFIG. 20 may include a lightguide plate body 431 andwindows 433. Thelight source 410 may be located at one side of the lightguide plate body 431 to provide light to the lightguide plate body 431. The lightguide plate body 431 may have a shape corresponding to the glass. The lightguide plate body 431 can receive light from thelight source 410 and propagate the light while reflecting the same. - Since the refractive index of the light
guide plate body 431 is higher than that of air, at least part of light propagated inside of thelight guide plate 431 can be totally reflected. - The
windows 433 can be formed on the side of thelight guide plate 431, which faces the glass. Thewindows 433 may have a protrusion shape protruding from the surface of the lightguide plate body 431, as shown inFIG. 21(a) , or a hole shape recessed from the surface of the lightguide plate body 431, as shown inFIG. 21(b) . Alternatively, thewindows 433 may be configured as a combination of protrusions and holes, which is not shown. - Each
window 433 may have a wall extending from the surface of the lightguide plate body 431 to the glass, as shown inFIG. 21(a) . The angle between the surface of the lightguide plate body 431 and the wall can be "a". When the angle "a" is a right angle, thewindow 433 can take a pillar shape. When the cross section of thewindow 433 is a circle, thewindow 433 can have a cylindrical shape. When the angle "a" is an obtuse angle and the cross section of thewindow 433 is a circle, thewindow 433 can have a truncated cone shape. When the angle "a" is an acute angle and the cross section of thewindow 433 is a circle, thewindow 433 can have an inverted truncated cone shape, as shown inFIG. 21(a) . Since the refractive index of thewindow 433 may be the same as the lightguide plate body 431, the quantity of light emitted from thewindow 433 may be determined by the angle "a". - Each
window 433 may have the shape of a hole recessed from the surface of the lightguide plate body 431, as shown inFIG. 21(b) . Thewindow 433 can have a wall extending from the surface of the lightguide plate body 431 to the inside thereof. The angle between the surface of the lightguide plate body 431 and the wall can be "a". Since the refractive index of thewindow 433 may be the same as the lightguide plate body 431, the quantity of light emitted from thewindow 433 may be determined by the angle "a". - When the
window 433 has a hole shape, the angle "a" between the wall of thewindow 433 and the surface of the lightguide plate body 431 may be changed according to position. For example, the angle "a" can be an obtuse angle in the case of a wall close to thelight source 410, whereas the angle "a" can be an acute angle in the case of a wall at a distance from thelight source 410. It is possible to control the quantity of light provided to the glass on the basis of distance from thelight source 410 by changing the angle "a" according to position. - When light propagated inside of the light
guide plate body 431 reaches thewindows 433, the light has an injection angle different from that at the surface of the lightguide plate body 431 and thus the light can pass through thewindows 433 without being totally reflected. The light that has passed through thewindows 433 can be propagated to the glass. -
FIG. 22 illustrates a light guide plate structure according to an embodiment of the present invention. Thelight guide plate 430 may include light diffusingparticles 434 contained in the lightguide plate body 431. When visible light is projected to thelight diffusing particles 434, thelight diffusing particles 434 can reflect the visible light in a plurality of directions. - A plurality of
light diffusing particles 434 may be provided. Thelight diffusing particles 434 may be a polymer, particularly, polystyrene. - The
light diffusing particles 434 may have a uniform or nonuniform distribution inside the lightguide plate body 431. Thelight guide plate 430 may include thewindows 433 provided on the side thereof, which faces theglass 300, as shown inFIG. 22 . A plurality ofwindows 433 may be uniformly distributed on thelight guide plate 430. - The spatial density of the
light diffusing particles 434 may be varied in the Y-axis direction. When thewindows 433 are uniformly distributed, which does not form part of the invention, the quantity of light provided from thelight guide plate 434 to theglass 300 can be controlled to be uniform by adjusting the spatial density of thelight diffusing particles 434. Even if thewindows 433 are uniformly distributed, the quantity of light provided from thelight guide plate 434 to theglass 300 can be controlled by adjusting the spatial density of thelight diffusing particles 434. -
FIG. 23 illustrates a light guide plate structure that does not form part of the present invention. Thelight guide plate 430 may include alower pattern 436 formed on one side of the lightguide plate body 431, which faces thereflective sheet 440. - The
lower pattern 436 may be formed on the external surface of the lightguide plate body 431 or inside of the lightguide plate body 431. - The
lower pattern 436 may have a conic shape, as shown inFIG. 23 . Alternatively, thelower pattern 436 may have the form of a pillar in parallel with the X-axis. The cross section of the pillar may be a triangle, rectangle, trapezoid, circle or oval. A reflection pattern of light incident upon thelower pattern 436 may depend on the shape of thelower pattern 436. - The spatial density of the
lower pattern 436 may be uniform or nonuniform in the Y-axis direction. The spatial distribution of the quantity of light provided to theglass 300 may depend on the spatial density of thelower pattern 436. - The quantity of light provided from the
light guide plate 430 to theglass 300 may be controlled to be uniform by adjusting the spatial density of thelower pattern 436. Even if thewindows 433 are not uniformly distributed, it is possible to control the quantity of light provided from thelight guide plate 430 to theglass 300 by adjusting the spatial density of thelower pattern 436. - The
windows 433 may all have the same shape, and the density of thewindows 433 may be varied according to distance from the light source, as shown inFIG. 24(a) . In the case of a mobile terminal having no fingerprint recognition function, a structure in which the glass and a touch sensor are laminated may have a uniform thickness. In this case, however, brightness of light provided to the glass may decrease according to distance (distance on the Y-axis) from the light source. Accordingly, to compensate for brightness decrease, the density of thewindows 433 can be increased as the distance from the light source increases. - As shown in
FIG. 24(b) , which representsFIG. 24(a) as a graph, the spatial density of thewindows 433 can be increased according to distance on the Y-axis. - In the case of the
light guide plate 430 including thelight diffusing particles 434, thelight diffusing particles 434 may be distributed, as shown inFIG. 25(a) . Thelight diffusing particles 434 can be uniformly distributed on one side of the lightguide plate body 431. Even if thelight diffusing particles 434 are not uniformly distributed, brightness of light provided to the glass can be controlled to be uniform by adjusting the spatial density of thelight diffusing particles 434. - The spatial density of the optical diffusing
particles 434 may be varied according to distance in the Y-axis direction, as shown inFIG. 25(b) . The spatial density of thelight diffusing particles 434 may increase as the distance in the Y-axis direction increases. In the case of thelight guide plate 430 including thelower pattern 436, thelower pattern 436 can be distributed as shown inFIG. 26(a) . It is possible to control brightness of light provided to the glass by adjusting the spatial density of thelower pattern 436. Thelower pattern 436 may have a conic shape, a truncated conic shape or a faceted conic shape. - The spatial density of the
lower pattern 436 may be varied according to distance in the Y-axis direction, as shown inFIG. 26(b) . The spatial density of thelower pattern 436 may increase as the distance in the Y-axis direction increases. - The spatial density of the
lower pattern 436 may be varied in the X-axis direction, which is not shown inFIG. 26 . When thelower pattern 436 has the shape of a pillar in contact with one side of the lightguide plate body 431, thelower pattern 436 can be arranged such that components of thelower pattern 436 are in a line or not in the length direction. -
FIG. 27 illustrates the spatial density of the windows of the mobile terminal shown inFIG. 9 . InFIG. 27 , thesecond touch region 320 is located at the lower part of the glass. Thewindows 433 may have the same shape. The brightness of light passing through the glass can be made uniform by controlling the brightness of light provided from a region of thelight guide plate 430, which corresponds to thesecond touch region 320, to be higher than the brightness of light provided from a region of thelight guide plate 430, which corresponds to thefirst touch region 330. - Since, according to the invention, the thicknesses of the first and second touch sensors are not uniform or, in an arrangement that does not form part of the invention, the density of the first and second touch sensors is not uniform in the direction in which the light guide plate faces the glass, as described above, the distribution pattern of the
windows 433 may differ from the window distribution pattern shown inFIG. 24 . As shown inFIG. 27(a) , the spatial density of thewindows 433 formed on the lightguide plate body 431 corresponding to thesecond touch region 320 in thelight guide plate 430 can increase as the distance from the light source increases (in the Y-axis direction). - The thickness of the first and second touch sensors is discontinuously varied or, in an arrangement not forming part of the invention, the density of the first and second touch sensors may be discontinuously varied in the direction in which the
light guide 430 faces theglass 300 at the boundary of thesecond touch region 320 along the Y-axis. That is, brightness of light provided to the glass may be discontinuous at a portion of thelight guide plate 430 corresponding to the boundary of thesecond touch region 430. Since brightness of light provided to the glass may depend on the density of thewindows 433, the density of thewindows 433 can be discontinuously varied at the portion of thelight guide plate 430 corresponding to the boundary of thesecond touch region 430. - Here, the concept of a specific transparent hole area is introduced. The specific transparent hole area can be defined as the area of
windows 433 per unit area of thelight guide plate 430 at a portion of thelight guide plate 430. The specific transparent hole area can depend on the size and density of thewindows 433. As a method for changing the specific transparent hole area, it is possible to consider a method for varying the density of thewindows 433 while maintaining the shape of thewindows 433, a method for varying the size of thewindows 433 while maintaining the density of thewindows 433 and a method for simultaneously varying the density and size of thewindows 433. - When the
windows 433 have the same shape, as shown inFIG. 27 , the density of thewindows 433 can correspond to the specific transparent hole area of thewindows 433. Accordingly, the specific transparent hole area can increase as the distance from the light source increases and can be discontinuously varied at a portion of thelight guide plate 430, which corresponds to the boundary of thesecond touch region 320 and thefirst touch region 330, as shown inFIG. 27(a) . - The density of the
windows 433 or the specific transparent hole area at the boundary of thesecond touch region 320 is considered. A point of the boundary of thesecond touch region 320, which corresponds to thefirst touch region 330, may be referred to as afirst point 340, a point of thesecond touch region 320, adjacent to the first point, may be referred to as asecond point 350, and a point of thefirst touch region 330, which is adjacent to the first point and corresponds to a point outside thesecond touch region 320, may be referred to as athird point 360. - As shown in
FIGS. 27(a) and 27(b) , density dnest2 of thewindows 433 at thesecond point 350 may be higher than density dnest3 of thewindows 433 at thethird point 360. From the viewpoint of the specific transparent hole area, a specific transparent hole area at thesecond point 350 may be wider than a specific transparent hole area at thethird point 360. - The window distribution pattern in
FIG. 27(b) may differ from the window distribution pattern inFIG. 24(b) . The window distribution pattern may be discontinuously changed at a point of thelight guide plate 430, which corresponds to a point of the boundary of thesecond touch region 320, which overlaps with thefirst touch region 330. The window density or the specific transparent hole area continuously increases in the case ofFIG. 24 , whereas the window density of the specific transparent hole area increases, decreases and then increases in the case ofFIG. 27 . -
FIG. 28 illustrates the density of light diffusing particles of the mobile terminal shown inFIG. 9 . InFIG. 28 , thesecond touch region 320 is located at the lower part of the glass. - A plurality of
light diffusing particles 434 having the same shape may be provided. Thelight diffusing particles 434 may be uniformly distributed. - The spatial density of the
light diffusing particles 434 may be varied along the Y-axis inside of the lightguide plate body 431, as shown inFIG. 28(a) . Particularly, the thickness or density of the first and second touch sensors is discontinuously varied in the direction in which thelight guide plate 430 faces the glass at the boundary of thesecond touch region 320 along the Y-axis. Accordingly, brightness of light provided from thelight guide plate 430 to the glass may be discontinuous and thus the brightness of light provided from thelight guide plate 430 to the glass can be controlled by adjusting the spatial density of thelight diffusing particles 434 at a portion of thelight guide plate 430, which corresponds to the boundary of thesecond touch region 320. - The spatial density of the
light diffusing particles 434 can be represented as a graph, as shown inFIG. 28(b). FIG. 28(b) representsFIG. 28(a) as a graph along the Y-axis. The spatial density dnest1 of thelight diffusing particles 434 at thefirst point 340 may be higher than the spatial density dnest2 of thelight diffusing particles 434 at thesecond point 350. Furthermore, the spatial density dnest2 may be higher than the spatial density dnest3 of thelight diffusing particles 434 at thethird point 360. -
FIG. 29 illustrates the spatial density of the lower pattern of the mobile terminal shown inFIG. 9 . InFIG. 29 , thesecond touch region 320 is located at the lower part of the glass. - The
lower pattern 436 may include a plurality of elements having the same shape. The elements of thelower pattern 436 may be uniformly distributed. - The spatial density of the
lower pattern 436 may be varied along the Y-axis inside of the lightguide plate body 431 or on one side of the lightguide plate body 431, as shown inFIG. 29(a) . The thickness or density of the first and second touch sensors is discontinuously varied in the direction in which thelight guide plate 430 faces the glass at the boundary of thesecond touch region 320 along the Y-axis. Accordingly, brightness of light provided from thelight guide plate 430 to the glass may be discontinuous. Accordingly, the brightness of light provided to the glass can be controlled by adjusting the spatial density of thelower pattern 436 at a portion of thelight guide plate 430, which corresponds to the boundary of thesecond touch region 320. - The spatial density of the
lower pattern 436 can be represented as a graph, as shown inFIG. 29(b) . The spatial density dnest1 of thelower pattern 436 at thefirst point 340 may be higher than the spatial density dnest2 of thelower pattern 436 at thesecond point 350, and the spatial density dnst2 may be higher than spatial density dnest3 of thelower pattern 436 at thethird point 360.FIG. 30 illustrates the spatial density of the windows of the mobile terminal ofFIG. 10 . InFIG. 30 , thewindows 433 may have the same shape. Referring toFIG. 10 , thesecond touch region 320 is located at the center of the lower part of the glass (in the X-axis direction). The spatial density in a direction A-A' inFIG. 8 is shown inFIG. 30(b) and the spatial density in a direction B-B' inFIG. 8 is shown inFIG. 30(c) . - In
FIG. 30(a) , a region defined by a dotted line is a region of thelight guide plate 430, which corresponds to thesecond touch region 320. That is, the dotted line is a line on thelight guide plate 430, which corresponds to a portion of the boundary of thesecond touch region 320, which overlaps with thefirst touch region 330. As shown inFIG. 30(a) , the spatial density or the specific transparent hole area of thewindows 433 can continuously increase as the distance from the light source increases and can discontinuously vary at a portion of thelight guide plate 430, which corresponds to the boundary between thesecond touch region 320 and thefirst touch region 330. - A window density pattern along the Y-axis is as shown in
FIG. 30(b) . When a distance between the start point of the Y-axis and a point on the Y-axis is V1 and a distance between the start point and the edge of thelight guide plate 430 is V2, the density of thewindows 433 increases until V1, is discontinuous or decreases at V1 and increases until V2. - The window density pattern along the X-axis is as shown in
FIG. 30(c) . When distances between the start point of the X-axis and points on the X-axis are H1 and H2 and a distance between the start point and the edge of thelight guide plate 430 is H3, the density of thewindows 433 is uniform along the X-axis, abruptly increases or discontinuously increases at H1 and then remains uniform, and abruptly decreases or discontinuously decreases at H3, as shown inFIG. 30(c) . InFIG. 30(c) , the density of thewindows 433 may increase or decrease rather than being uniform insections 0 to H1, H1 to H2 and H2 to H3. However, the spatial density of thewindows 433, shown inFIG. 30(c) , is characterized in that the spatial density abruptly increases or discontinuously increases at H1 and abruptly decreases or discontinuously decreases at H2. - As shown in
FIGS. 30(a), 30(b) and 30(c) , the density dnest2 of thewindows 433 at thesecond point 350 may be equal to or higher than the density dnest3 of thewindows 433 at thethird point 360. The specific transparent hole area at thesecond point 350 may be equal to or wider than the specific transparent hole area at thethird point 360. -
FIG. 31 illustrates the density of the light diffusing particles of the mobile terminal shown inFIG. 10 . InFIG. 31 , thelight diffusing particles 434 may have the same shape and may be uniformly distributed. InFIG. 31(a) , a region defined by a dotted line is a region of thelight guide plate 430 corresponding to thesecond touch region 320. That is, the dotted line is a line on thelight guide plate 430, which corresponds to a portion of the boundary of thesecond touch region 320, which overlaps with thefirst touch region 330. - As shown in
FIG. 31(a) , the spatial density of thelight diffusing particles 434 can continuously increase as the distance from the light source increases and can discontinuously vary at a portion of thelight guide plate 430, which corresponds to the boundary between thesecond touch region 320 and thefirst touch region 330. - A spatial density pattern of the
light diffusing particles 434 is shown inFIG. 31(b) . When a distance between the start point of the Y-axis and a point on the Y-axis is V1 and a distance between the start point and the edge of thelight guide plate 430 is V2, the density of thelight diffusing particles 434 increases until V1, is discontinuous or decreases at V1 and increases until V2. - The spatial density of the
light diffusing particles 434 along the X-axis is shown inFIG. 31(c) . The spatial density of thelight diffusing particles 434 is uniform along the X-axis, abruptly increases or discontinuously increases at H1 and then remains uniform, and abruptly decreases or discontinuously decreases at H3, as shown inFIG. 31(c) . InFIG. 31(c) , the spatial density of thelight diffusing particles 434 may have a quasi-uniform pattern rather than being uniform insections 0 to HI, H1 to H2 and H2 to H3. However, the spatial density of thelight diffusing particles 434, shown inFIG. 31(c) , is characterized in that the spatial density abruptly increases or discontinuously increases at H1 and abruptly decreases or discontinuously decreases at H2. -
FIG. 32 illustrates the density of the lower pattern of the mobile terminal shown inFIG. 10 . InFIG. 32 , thelower pattern 436 may have a plurality of elements having the same shape and uniformly distributed. InFIG. 32(a) , a region defined by a dotted line is a region of thelight guide plate 430, which corresponds to thesecond touch region 320. That is, the dotted line is a line on thelight guide plate 430, which corresponds to a portion of the boundary of thesecond touch region 320, which overlaps with thefirst touch region 330. - As shown in
FIG. 32(a) , the spatial density of thelower pattern 436 can continuously increase as the distance from the light source increases and can discontinuously vary at a portion of thelight guide plate 430, which corresponds to the boundary between thesecond touch region 320 and thefirst touch region 330. - A spatial density pattern of the
lower pattern 436 is as shown inFIG. 32(b) . The density of thelower pattern 436 increases until V1, discontinuously decreases or abruptly decreases at V1 and increases until V2. - As shown in
FIG. 32(c) , the spatial density of thelower pattern 436 is uniform along the X-axis, abruptly increases or discontinuously increases at H1 and then remains uniform, and abruptly decreases or discontinuously decreases at H3. InFIG. 32(c) , the spatial density of thelower pattern 436 may have a quasi-uniform pattern rather than being uniform insections 0 to H1, H1 to H2 and H2 to H3. However, the spatial density of thelower pattern 436, shown inFIG. 32(c) , is characterized in that the spatial density abruptly increases or discontinuously increases at H1 and abruptly decreases or discontinuously decreases at H2. -
FIG. 33 illustrates the size of the windows of the mobile terminal shown inFIG. 9 . InFIG. 33 , thesecond touch region 320 is located at the lower part of the glass. While the density of thewindows 433 is uniform in the area of thelight guide plate 430, the size of thewindows 433 may vary. When the window size increases, the quantity of light provided to the glass through thewindows 433 can increase. - As shown in
FIG. 3(a) , the size of thewindows 433 may increase as the distance from a region of thelight guide plate 430, corresponding to thesecond touch region 320, increases in the Y-axis direction. Furthermore, the size of thewindows 433 may increase as the distance from a region of thelight guide plate 430, corresponding to the outside of thesecond touch region 320, increases in the Y-axis direction. However, the size of thewindows 433 may be discontinuously varied at a portion of thelight guide plate 430, which corresponds to a point of the boundary of thesecond touch region 320, which overlaps with thefirst touch region 330. - Referring to
FIG. 33(b) , in thesecond touch region 320 and an area of thefirst touch region 330, which corresponds to the outside of thesecond touch region 320, the size of thewindows 433 can increase in the Y-axis direction. However, the size of thewindows 433 may abruptly decrease or discontinuously decrease at a point of the boundary of thesecond touch region 320, which corresponds to thefirst touch region 330. - A
mobile terminal 800 according to an embodiment of the present invention can obtain a fingerprint of auser 700 through at least part of the glass.FIG. 34 illustrates a change of the state of the mobile terminal using the fingerprint of the user. - The controller may obtain fingerprint information of the
user 700 through the second touch sensor during touch operation of theuser 700 through the first touch sensor and activate themobile terminal 800 according to the touch operation and the obtained fingerprint information. For example, when theuser 700 touches the second touch region in a deactivated state of themobile terminal 800 and maintains the touch for a predetermined time, the controller can recognize a fingerprint of theuser 700 and activate themobile terminal 800. Here, the controller may be thecontroller 180 shown inFIG. 1 . - When the
user 700 touches the second touch region multiple times in a deactivated state of themobile terminal 800, the controller may recognize the fingerprint of theuser 700 and determine whether themobile terminal 800 is activated. Here, the controller may obtain the fingerprint information at the end point of touch operation. For example, the controller can prepare for acquisition of the fingerprint of theuser 700 by recognizing first touch of theuser 700 and activate themobile terminal 800 or a specific application by obtaining the fingerprint of theuser 700 from second touch of theuser 700.FIG. 35 illustrates a change of an application accessible in a locked state of the mobile terminal through user fingerprint recognition. - Referring to
FIG. 35(a) , themobile terminal 800 is locked and an application less related to security, such as a camera application, can be executed in the locked mobile terminal. When theuser 700 intends to directly execute an application related to security (e.g., a gallery application) through a lock screen, theuser 700 can use fingerprint recognition. - When the
user 700 provides the fingerprint through thesecond touch region 320, as shown inFIG. 35(a) , the controller can identify theuser 700 by obtaining the fingerprint of theuser 700. Upon acquisition and authentication of the fingerprint of theuser 700 through the controller, the camera application can be executed. However, when the obtained fingerprint is not authenticated, the controller can change anicon 820 linked to the camera application in a locked state to an icon 830 linked to the gallery application, as shown inFIG. 35(b) . That is, different applications can be activated according to the fingerprint information obtained through thesecond touch region 320. Here, the different applications may be applications related to each other. For example, the camera application and the gallery application may be closely related applications. As the application accessible in the locked state of the mobile terminal according to the fingerprint information of theuser 700, the galley application can be directly executed when theuser 700 touches the icon 830 linked to the gallery application, as shown inFIG. 35(c) . - Even in the case of an icon linked to an application, the application may be executed in different modes in a case in which input applied to the icon is obtained through the
first touch region 330 and in a case in which input applied to the icon is obtained through thesecond touch region 320. For example, when input for executing a music playback application is obtained through thefirst touch region 330, only a music file stored in themobile terminal 800 can be played, as shown inFIG. 36(a) . When input for executing the music playback application is obtained through thesecond touch region 320, the controller can not only control a music file stored in themobile terminal 800 to be played but also enable the user to purchase a sound source in on-line sound source markets or to edit a music file stored in themobile terminal 800, as shown inFIG. 36(b) . - When the fingerprint information obtained through the
second touch region 320 is authenticated, the controller can activate an execution mode in which sound source purchase requiring identification of theuser 700 is available, as shown inFIG. 36(b) . When the fingerprint information obtained through thesecond touch region 320 is not authenticated, the controller can activate an execution mode in which a music file requiring no identification of theuser 700 can be played, as shown in the right part ofFIG. 36(a) . That is, the controller can differently activate the execution mode of an application linked to an icon located in thesecond touch region 320 according to fingerprint information obtained through the icon. - The controller may obtain first input of moving an
icon 850 located in thefirst touch region 330 outside of thesecond touch region 320 to thesecond touch region 320 through drag-and-drop. That is, theuser 700 can move theicon 850 from thefirst touch region 330 outside of thesecond touch region 320 to the inside of thesecond touch region 320 through drag-and-drop, as shown inFIG. 37(a) . - The controller can activate an application linked to the
icon 850 located in the second touch region according to fingerprint information obtained through theicon 850. That is, the controller can differently activate the execution mode of the application linked to the icon according to whether the fingerprint obtained through thesecond touch sensor 404 is authenticated. - The controller may obtain second input of moving the
icon 850 located in thesecond touch region 320 to a portion of thefirst touch region 330, outside of thesecond touch region 320, according to drag-and-drop. That is, theuser 700 can move theicon 850 from thesecond touch region 320 to the outside of thesecond touch region 320 through drag-and-drop, as shown inFIG. 37(b) . The controller can activate the application linked to theicon 850 according to input obtained through thefirst touch sensor 402. - While it is desirable that the
icon 850 linked to the application which requires fingerprint information be located in thesecond touch region 320, a case in which theicon 850 is located in thefirst touch region 330 outside of thesecond touch region 320 may be considered. - When the
user 700 executes the application requiring fingerprint information even when theicon 850 linked to the application is located in thefirst touch region 330 outside of thesecond touch region 320, the controller may induce theuser 700 to input their fingerprint by changing the color or brightness of thesecond touch region 320 while outputting an audible alarm, for example, as shown inFIG. 38(a) . - When the
icon 850 linked to the application requiring fingerprint information is located in thefirst touch region 320 outside of thesecond touch region 320 and theuser 700 intends to execute the application without moving theicon 850 to thesecond touch region 320 although theuser 700 recognizes the position of theicon 850, the controller may obtain fingerprint information through drag-and-hold, for example, as shown inFIG. 38(b) . That is, when theuser 700 drags theicon 850 to thesecond touch region 320 and then maintains theicon 850 for a predetermined time, the controller can obtain the fingerprint information of theuser 700 through thesecond touch sensor 404. - Security of the mobile terminal can be implemented using fingerprint information. As shown in
FIG. 39 , the controller of the mobile terminal can obtain fingerprint information through the second touch sensor 404 (S10). Here, operation of the mobile terminal may depend on whether the mobile terminal is locked or not (S20). When the mobile terminal is locked, whether the fingerprint obtained through the second touch sensor 4040 is authenticated is checked (S30). When the obtained fingerprint is authenticated, the controller can activate an "owner home screen" of the mobile terminal, which can be used by the owner of the mobile terminal (S40). When the obtained fingerprint is not authenticated, the controller can activate a "guest home screen" of the mobile terminal, which can be used by anyone (S50). - When the mobile terminal is not locked, operation of the mobile terminal may depend on whether an icon linked to an application is touched (S60). When the icon is touched, whether the fingerprint obtained through the
second touch sensor 404 is authenticated is checked (S70). When the obtained fingerprint is authenticated, the controller can control the application linked to the icon to be executed without restriction (S90). - When the obtained fingerprint is not authenticated, the controller can control the application linked to the icon to be restrictively executed (S80). For example, the application can be executed with a specific function thereof restricted, the execution of the application can be restricted or the mobile terminal can be locked such that access to the mobile terminal is restricted.
- When the icon is not touched, the controller can discard the fingerprint information obtained through the
second touch sensor 404 and wait for the next signal input. - The above-described method of controlling the mobile terminal may be written as computer programs and may be implemented in digital microprocessors that execute the programs using a computer readable recording medium. The method of controlling the mobile terminal may be executed through software. The software may include code segments that perform required tasks. Programs or code segments may also be stored in a processor readable medium or may be transmitted according to a computer data signal combined with a carrier through a transmission medium or communication network.
- The computer readable recording medium may be any data storage device that can store data that can be thereafter read by a computer system. Examples of the computer readable recording medium may include read-only memory (ROM), random-access memory (RAM), CD-ROMs, DVD-ROM, DVD-RAM, magnetic tapes, floppy disks, optical data storage devices. The computer readable recording medium may also be distributed over network coupled computer systems so that the computer readable code is stored and executed in a distribution fashion.
- A mobile terminal may include a first touch screen configured to display a first object, a second touch screen configured to display a second object, and a controller configured to receive a first touch input applied to the first object and to link the first object to a function corresponding to the second object when receiving a second touch input applied to the second object while the first touch input is maintained.
- A method may be provided of controlling a mobile terminal that includes displaying a first object on the first touch screen, displaying a second object on the second touch screen, receiving a first touch input applied to the first object, and linking the first object to a function corresponding to the second object when a second touch input applied to the second object is received while the first touch input is maintained.
- Any reference in this specification to "one embodiment," "an embodiment," "example embodiment," etc., means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the invention. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment. Further, when a particular feature, structure, or characteristic is described in connection with any embodiment, it is submitted that it is within the purview of one skilled in the art to effect such feature, structure, or characteristic in connection with other ones of the embodiments.
- Although embodiments have been described with reference to a number of illustrative embodiments thereof, it should be understood that numerous other modifications and embodiments can be devised by those skilled in the art that will fall within the scope of the claims.
- More particularly, various variations and modifications are possible in the component parts and/or arrangements of the subject combination arrangement within the scope of the disclosure, the drawings and the appended claims. In addition to variations and modifications in the component parts and/or arrangements, alternative uses will also be apparent to those skilled in the art.
Claims (11)
- A mobile terminal, comprising:a glass (300) including a first touch region (330) through which touch of a user is obtained and a second touch region (320) through which touch of the user is obtained, the second touch region being located in part of the first touch region, wherein the second touch region is located at a lower portion of the glass panel;a touch screen having a first touch sensor (402) and a second touch sensor (404), the touch screen having a first area corresponding to the first touch region and a second area corresponding to the second region;the first touch sensor located on the backside of the glass;the second touch sensor located on the backside of the glass;a light guide plate (430) located on the backsides of the first and second touch sensors; anda light source (410) located on at least one side of the light guide plate,wherein the light guide plate includes: a light guide plate body (431) configured to propagate light generated from the light source; and a plurality of windows (433) arranged on a side of the light guide plate body, opposite the glass, such that brightness of the second touch region is substantially the same as brightness of a portion of the first touch region, outside of the second touch region,wherein a size and/or density of the windows varies over the plurality,characterized in that fingerprint information of the user is also obtained through the second touch region, and in that the second touch sensor is laminated on the first touch sensor in the thickness direction of the mobile terminal, such that a thickness of the second touch region is greater than a thickness of the portion of the first touch region.
- The mobile terminal of claim 1, wherein the plurality of windows are arranged such that brightness of light provided to the second touch sensor is higher than brightness of light provided to a region outside of the second touch sensor.
- The mobile terminal of claim 1, wherein properties of the plurality of windows are discontinuously varied around the boundary of the second touch region.
- The mobile terminal of claim 3, wherein the density of windows corresponding to the inside of the second touch region, from among the plurality of windows, is higher than the density of windows corresponding to the outside of the second touch region, from among the plurality of windows.
- The mobile terminal of claim 3, wherein a size of windows corresponding to the inside of the second touch region, from among the plurality of windows, is larger than a size of windows corresponding to the outside of the second touch region, from among the plurality of windows.
- The mobile terminal of claim 1, wherein a first window corresponding to the inside of the second touch region and a second window corresponding to the outside of the second touch region, from among first and second windows at the same distance from the light source, from among the plurality of windows, have different properties.
- The mobile terminal of claim 1, wherein the size and/or density of windows corresponding to the first touch region outside of the second touch region, from among the plurality of windows, is continuously varied according to distance from the light source.
- The mobile terminal of claim 1, wherein the second touch region is located in contact with an edge of the glass.
- The mobile terminal of claim 1, further comprising a controller configured to activate different applications according to fingerprint information obtained through the second touch region or to differently activate an execution mode of an application linked to an icon located in the second touch region on the basis of fingerprint information obtained through a region corresponding to the icon.
- The mobile terminal of claim 1, further comprising a controller configured to differently activate an execution mode of an application linked to an icon located in the first touch region outside of the second touch region on the basis of fingerprint information obtained through the second touch sensor when first input of moving the icon to the inside of the second touch region is obtained.
- The mobile terminal of claim 1, wherein the controller is configured to change the color or brightness of the second touch region when the second touch sensor is activated while outputting an audible alarm.
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KR1020150167359A KR102401009B1 (en) | 2015-11-27 | 2015-11-27 | Mobile terminal |
PCT/KR2015/013701 WO2017090816A1 (en) | 2015-11-27 | 2015-12-15 | Mobile terminal |
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EP3383001A4 EP3383001A4 (en) | 2019-07-03 |
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EP (1) | EP3383001B1 (en) |
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WO2017090816A1 (en) | 2017-06-01 |
US20170153743A1 (en) | 2017-06-01 |
US10921922B2 (en) | 2021-02-16 |
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